St. Mary, Montana, United States of America: What to pack, what to wear, and when to go [2022]

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Traveling to St. Mary, Montana, United States of America? If you're planning to go to St. Mary, here is some important information about when to go, what to wear, and what to pack.

Contents

About your travel guide

Hi! I'm Dev. I've traveled all over the world and in my travels, I have made many packing lists. In this series, my team and I have compiled the most useful information, as well as things we couldn't live without, to help you plan your trip.

When to go to St. Mary, Montana, United States of America

Based on the climate and weather in St. Mary, the best time to go is July. See below for details.

Important essentials for St. Mary, Montana, United States of America

Here are some general tips on what to wear in St. Mary, as well as several items to remember to pack when traveling there.

What to wear/what to pack for St. Mary, Montana, United States of America by month

Already know when you're traveling?

January

Traveling to St. Mary in January, you will notice that it can be extremely cold. Expect it to snow a bit less than half of the time. Daytime temperatures are in the low 30s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Hand sanitizer

    This hand sanitizer is an easy-to-carry plane-friendly product.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Travel first aid kit

    This one is a excellent value.

  • A vaccine card protector

    Vaccine cards may wear out. An unreadable vaccine card may result in severe consequences. This vaccine card protector helps avoid that.

  • Emergency motion sickness relief

Safety + Security
  • Voice and data SIM card

    A SIM card that works in St. Mary. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

    For a bit of peace of mind, an anti-theft backpack protects your things.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

Comfort
  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

  • Travel adapter

    A plug adapter that supports outlet types A and B. Be sure to pick the right kind. Most adapters for sale now are simply plugs and expect your devices to adjust the voltage themselves. If yours can't do that they could get fried. This one is sufficent for most areas.

  • Travel neck pillow

    What we like is this one

  • Easy folding travel stroller

    This stroller weighs only 10 lbs and folds to the size of a big book.

February

February in St. Mary is frosty. The rain/snow can amount to several inches/centimeters. During this time, temperatures average in the 20s F (single digits below 0 C) to 30s F (single digits C), although night temperatures can dip into the single digits F (10+ below zero C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Emergency motion sickness relief

  • A vaccine card protector

    Vaccine cards can become worn. An unreadable vaccine card can have severe consequences. This vaccine card protector helps avoid that.

  • Travel first aid kit

    This one is a great choice.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Hand sanitizer

    This hand sanitizer is an easy-to-carry plane-friendly option.

Safety + Security
  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your belongings.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Voice and data SIM card

    A SIM card that works in St. Mary. A good global SIM card works in most countries, but check the country list before buying.

Comfort
  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

  • Super portable foldable travel stroller

    This stroller weighs just 10 lbs and folds to the size of a big book.

  • Travel pillow

    A great choice is this one

  • Plug adapter

    A plug adapter that supports outlet types A and B. It's important that you get the right kind. A lot of adapters for sale now are simply plug changers and expect your electronics to adjust the voltage themselves. If yours can't do that they could get destroyed. This one should be appropriate for most areas.

March

March in St. Mary is pretty cool. The average overnight temperatures in the area are in the low 20s F (single digits below 0 C), with a few days below 0 F (10+ below zero C). It snows regularly.

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Emergency motion sickness relief

  • Hand sanitizer

    This hand sanitizer is an easy-to-carry TSA-friendly option.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • A vaccine card protector

    Vaccine cards can become worn. An unreadable vaccine card can have severe consequences. This vaccine card protector helps stop that.

  • Travel first aid kit

    This one is a superb value.

Safety + Security
  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Voice and data SIM card

    A SIM card that works in St. Mary. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your stuff.

Comfort
  • Travel neck pillow

    What we like is this one

  • Power bank for devices

    A portable power bank, like this one

  • Easy folding travel stroller

    This stroller weighs almost 10 pounds and folds to the size of a big book.

  • Travel adapter

    A plug adapter that supports outlet types A and B. Take care to get the correct type. A lot of adapters on sale are simply plugs and require your electronics to convert the voltage themselves. If your electronics can't do that they could get fried. This one should be appropriate for most countries.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

April

April in St. Mary can be brisk. The rain/snow can amount to several inches/centimeters. During this time, temperatures average in the low 50s F (low 10s C), although night temperatures can dip into the low 20s F (single digits below 0 C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Emergency motion sickness relief

  • A vaccine card protector

    Vaccine cards can get worn. An unreadable card may result in severe consequences. This vaccine card protector helps avoid that.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Hand sanitizer

    This hand sanitizer is an easy-to-carry plane-friendly choice.

  • Travel first aid kit

    This one is a good option.

Safety + Security
  • Anti-theft backpack

    For a little protection, an anti-theft backpack protects your belongings.

  • Voice and data SIM card

    A SIM card that works in St. Mary. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

Comfort
  • Travel neck pillow

    Our favorite is this one

  • Ultralightweight travel stroller

    This stroller weighs just 10 lbs and folds to the size of a big book.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Check that you get the correct type. A lot of adapters that you can buy are simply plugs and require your devices to adjust the voltage themselves. If yours can't do that they could get destroyed. This one should work in most countries.

May

May in this region is chilly. Temperatures average in the low 60s F (mid 10s C) during the day.

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Emergency motion sickness relief

  • Hand sanitizer

    This hand sanitizer is a good plane-friendly product.

  • A vaccine card protector

    Vaccine cards may wear away. An unreadable vaccination card may result in severe consequences. This vaccine card protector helps stop that.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Travel first aid kit

    This one is a good option.

Safety + Security
  • Anti-theft backpack

    For a bit of peace of mind, an anti-theft backpack protects your belongings.

  • Voice and data SIM card

    A SIM card that works in St. Mary. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

Comfort
  • Travel pillow

    What we like is this one

  • Easy folding travel stroller

    This stroller weighs only 10 pounds and folds to the size of a big book.

  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Be careful to find the necessary type. A lot of adapters currently available are just plug changers and require your devices to change the voltage themselves. If your electronics can't do that they could get destroyed. This one works in most locations.

  • Power bank for devices

    A portable power bank, like this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

June

If you vacation in St. Mary during June, you may find that it is mild. Temperatures tend to hover around the high 60s F (low 20s C) during the day, while at night they can dip into the low 40s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Hand sanitizer

    This hand sanitizer is an easy-to-carry plane-friendly choice.

  • Travel first aid kit

    This one is a excellent value.

  • Emergency motion sickness relief

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • A vaccine card protector

    Vaccine cards can become worn. An unreadable vaccine card can cause severe consequences. This vaccine card protector helps avoid that.

Safety + Security
  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your belongings.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Voice and data SIM card

    A SIM card that works in St. Mary. A good global SIM card works in most countries, but check the country list before buying.

Comfort
  • Travel pillow

    An excellent option is this one

  • Easy folding travel stroller

    This stroller weighs almost 10 pounds and folds to the size of a big book.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel adapter

    A plug adapter that supports outlet types A and B. Take care to get the correct type. Many adapters currently available are simply plugs and require your electronics to convert the voltage themselves. If yours can't do that they could get fried. This one is sufficent for most locations.

  • Power bank for devices

    A portable power bank, like this one

July

July is a perfect temperature. Temperatures average in the high 70s F (mid 20s C) during the day.

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Travel first aid kit

    This one is a superb one.

  • A vaccine card protector

    Vaccine cards can get worn. An unreadable vaccine card can have severe consequences. This vaccine card protector helps stop that.

  • Emergency motion sickness relief

  • Hand sanitizer

    This hand sanitizer is an easy-to-carry plane-friendly choice.

Safety + Security
  • Voice and data SIM card

    A SIM card that works in St. Mary. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Anti-theft backpack

    For a little protection, an anti-theft backpack protects your things.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

Comfort
  • Voltage step down adapter

    A plug adapter that supports outlet types A and B. Make sure to find the right kind. The majority of adapters available are just plugs and require your electronics to adjust the voltage themselves. If your electronics can't do that they could get fried. This one works in most locations.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel pillow

    A versatile choice is this one

  • Folding travel stroller

    This stroller is only 10 lbs and folds to the size of a big book.

  • Power bank for devices

    A portable power bank, like this one

August

August for St. Mary is warm. Temperatures average in the high 70s F (mid 20s C) during the day.

What to wear/what to pack:

Clothes + Footwear
Health Essentials
Safety + Security
  • Anti-theft backpack

    For a bit of peace of mind, an anti-theft backpack protects your things.

  • Voice and data SIM card

    A SIM card that works in St. Mary. A good global SIM card works in most countries, but check the country list before buying.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort
  • Power bank for devices

    A portable power bank, like this one

  • Super portable foldable travel stroller

    This stroller weighs almost 10 pounds and folds to the size of a big book.

  • Plug adapter

    A plug adapter that supports outlet types A and B. Take care to pick the correct type. Many adapters currently sold are simply plug changers and require your electronics to convert the voltage themselves. If your electronics can't do that they could get fried. This one should be appropriate for most countries.

  • Travel pillow

    What we like is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

September

If you vacation in St. Mary during September, you will probably find that it is balmy. Temperatures tend to hover around the 60s F (high 10s C) during the day, while at night they can dip into the high 30s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Travel first aid kit

    This one is a superb value.

  • Hand sanitizer

    This hand sanitizer is an excellent plane-friendly product.

  • A vaccine card protector

    Vaccine cards often wear out. An unreadable vaccine card can cause severe consequences. This vaccine card protector helps avoid that.

  • Emergency motion sickness relief

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

Safety + Security
  • Voice and data SIM card

    A SIM card that works in St. Mary. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

    For a little peace of mind, an anti-theft backpack protects your things.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort
  • Travel neck support pillow

    A good option is this one

  • Super portable foldable travel stroller

    This stroller weighs just 10 pounds and folds to the size of a big book.

  • Travel adapter

    A plug adapter that supports outlet types A and B. Make sure to pick the right type. Most adapters currently sold are simply plugs and require your devices to change the voltage themselves. If your electronics can't do that they could get fried. This one should be appropriate for most locations.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Power bank for devices

    A portable power bank, like this one

October

October is cold. Temperatures average in the low 50s F (low 10s C) during the day.

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Emergency motion sickness relief

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • A vaccine card protector

    Vaccine cards may become worn. An unreadable vaccine card can have severe consequences. This vaccine card protector helps avoid that.

  • Travel first aid kit

    This one is a superb kit.

  • Hand sanitizer

    This hand sanitizer is an excellent plane-friendly option.

Safety + Security
  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Voice and data SIM card

    A SIM card that works in St. Mary. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

    For a bit of peace of mind, an anti-theft backpack protects your things.

Comfort
  • Easy folding travel stroller

    This stroller weighs only 10 lbs and folds to the size of a big book.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Plug adapter

    A plug adapter that supports outlet types A and B. It's important that you get the necessary kind. The majority of adapters that you can buy are just plugs and expect your devices to adjust the voltage themselves. If yours can't do that they could get fried. This one works in most areas.

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck support pillow

    Our favorite is this one

November

In November, St. Mary can be very chilly. Temperatures routinely are in the high 30s F (single digits C) and about half of the time jump into the low 40s F (single digits C) range. At night, lows are in the low 20s F (single digits below 0 C). This is also a rainy time for St. Mary, with several of the days of the month having rain.

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Hand sanitizer

    This hand sanitizer is an excellent plane-friendly option.

  • A vaccine card protector

    Vaccine cards frequently get worn. An unreadable vaccine card can have severe consequences. This vaccine card protector helps avoid that.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • Emergency motion sickness relief

  • Travel first aid kit

    This one is a great kit.

Safety + Security
  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Anti-theft backpack

    For a little protection, an anti-theft backpack protects your things.

  • Voice and data SIM card

    A SIM card that works in St. Mary. A good global SIM card works in most countries, but check the country list before buying.

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

Comfort
  • Voltage adapter

    A plug adapter that supports outlet types A and B. Make sure to choose the correct type. A lot of adapters available are simply plug changers and require your devices to change the voltage themselves. If yours can't do that they could burn up. This one works in most countries.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Ultraportable travel stroller

    This stroller weighs just 10 lbs and folds to the size of a big book.

  • Power bank for devices

    A portable power bank, like this one

  • Travel pillow

    A good option is this one

December

In December, St. Mary can be extremely cold. Temperatures routinely are in the low 30s F (single digits below 0 C) and 5-10 days this month jump into the low 40s F (single digits C) range. At night, lows are in the 10s F (single digits below 0 C). This is also a rainy time for St. Mary, with several of the days of the month having rain.

What to wear/what to pack:

Clothes + Footwear
Health Essentials
  • Hand sanitizer

    This hand sanitizer is a good TSA-friendly product.

  • Travel disinfecting wipes

    Use these to sanitize plane and hotel surfaces.

  • A vaccine card protector

    Vaccine cards often become worn. An unreadable card can have severe consequences. This vaccine card protector helps avoid that.

  • Emergency motion sickness relief

  • Travel first aid kit

    This one is a great choice.

Safety + Security
  • Voice and data SIM card

    A SIM card that works in St. Mary. A good global SIM card works in most countries, but check the country list before buying.

  • Travel insurance

    With countries and airlines constantly changing policies, your amazing trip can be ruined if you get sick. Good travel insurance can help. See plans

  • Money/passport pouch

    A money pouch is vital for protecting your passport and credit cards.

  • Anti-theft backpack

    For a bit of peace of mind, an anti-theft backpack protects your stuff.

Comfort
  • Ultraportable travel stroller

    This stroller weighs just 10 pounds and folds to the size of a big book.

  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Be careful to get the necessary kind. Most adapters available online are just plug changers and expect your devices to adjust the voltage themselves. If your devices can't do that they could get fried. This one is sufficent for most locations.

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck support pillow

    A top rated pillow is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

Activities for St. Mary, Montana, United States of America

Here are some activity recommendations and activity-specific packing tips for St. Mary.

Check out our guides for these other locations: Glenbrittle, Scotland, United Kingdom, La Rinconada, Peru, Wujie, Taiwan, Hooper's Island, Maryland, United States of America, Nærbø, Norway, Lembang, Indonesia, Loja, Ecuador, Pacific Grove, California, United States of America, Gwangyang, South Korea, Irbid, Jordan, and Kalaw, Myanmar.