O'Fallon, Illinois, United States of America: What to pack, what to wear, and when to go [2024]

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Ready to pack for O'Fallon, Illinois, United States of America? If you're planning to go to O'Fallon, this is some important information about when to go, what to wear, and what to pack.

Contents

When to go to O'Fallon, Illinois, United States of America

Based on the climate and weather in O'Fallon, Illinois, United States of America, the best time to go is September. See below for details.

What to wear/what to pack for O'Fallon, Illinois, United States of America

Already know when you're traveling?

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

What to wear/what to pack for O'Fallon, Illinois, United States of America by month

January

January in O'Fallon can be brisk. The rain/snow can amount to several inches/centimeters. During this time, temperatures average in the low 30s F (single digits below 0 C) to high 30s F (single digits 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
Safety + Security
  • Anti-theft backpack

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

  • AirTag to track your luggage

    With airports constantly losing things recently, an AirTag can help you locate it anywhere anywhere: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in O'Fallon. 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 + Essentials
  • Luggage scale to avoid fees

    Airlines charge excessive amounts for overweight luggage. Avoid penalties with this

  • Travel adapter

    A plug adapter that supports outlet types A and B. Make sure to pick the necessary kind. Most adapters currently being sold are just plugs and expect your electronics to convert the voltage themselves. If your electronics can't do that they could burn up. This one should work 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

  • Travel neck support pillow

    A great choice is this one

February

Traveling to O'Fallon in February, you will notice that it can be brisk. Expect it to rain regularly. Daytime temperatures are in the 40s F (single digits C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • Voice and data SIM card

    A SIM card that works in O'Fallon. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airports always losing bags nowadays, an AirTag can help you find it anywhere on earth: AirTag for iPhones.

  • Anti-theft backpack

    For a little 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.

Comfort + Essentials
  • 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 voltage adapter

    A plug adapter that supports outlet types A and B. Check that you find the right kind. The majority of adapters currently being sold are just plug changers and require your devices to change the voltage themselves. If yours can't do that they could burn up. This one should be sufficient for most countries.

  • Travel pillow

    An excellent option is this one

  • Luggage scale to avoid fees

    Airlines charge excessive amounts for overweight luggage. Save money with this

March

March in this region is cool and somewhat rainy. Temperatures average in the 50s F (low 10s C) during the day. It rains 5-10 days this month.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • AirTag to track your luggage

    With airports constantly losing things nowadays, an AirTag can help you locate it anywhere on earth: AirTag for iPhones.

  • Anti-theft backpack

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

  • Voice and data SIM card

    A SIM card that works in O'Fallon. 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 + Essentials
  • 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 pillow

    Our fave is this one

  • Plug adapter

    A plug adapter that supports outlet types A and B. Make sure to get the correct type. The vast majority of adapters currently sold are just plugs and require your electronics to change the voltage themselves. If your electronics can't do that they could burn up. This one works in most places.

  • Luggage scale to avoid fees

    Airlines charge excessive amounts for overweight luggage. Avoid penalties with this

April

In April, O'Fallon is balmy and somewhat rainy. Temperatures routinely are in the high 60s F (high 10s C) and regularly jump into the low 70s F (low 20s C) range. At night, lows are in the low 40s F (single digits C). This is also a rainy time for O'Fallon, with several of the days of the month having rain. In April, humidity reaches as high as 50%.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • AirTag to track your luggage

    With airports always losing luggage recently, an AirTag can help you locate it anywhere in the world: AirTag for iPhones.

  • 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 O'Fallon. 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 + Essentials
  • Travel pillow

    An excellent option is this one

  • Luggage scale to avoid fees

    Airlines charge large prices for overweight luggage. Save money with this

  • 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. Make sure to find the correct kind. The vast majority of adapters available are just plug changers and expect your electronics to convert the voltage themselves. If yours can't do that they could get fried. This one should be appropriate for most countries.

  • Power bank for devices

    A portable power bank, like this one

May

May in O'Fallon is warm and somewhat rainy. Temperatures average in the 70s F (mid 20s C) during the day. It rains 5-10 days this month.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • Voice and data SIM card

    A SIM card that works in O'Fallon. A good global SIM card works in most countries, but check the country list before buying.

  • Anti-theft backpack

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

  • Money/passport pouch

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

  • AirTag to track your luggage

    With airlines repeatedly losing things these days, an AirTag can locate it anywhere in the world: AirTag for iPhones.

Comfort + Essentials
  • Plug adapter

    A plug adapter that supports outlet types A and B. Check that you find the right type. Many adapters available online are just plugs and require your electronics to adjust the voltage themselves. If yours can't do that they could burn up. This one should work in 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

  • Luggage scale to avoid fees

    Airlines charge huge prices for overweight luggage. Avoid penalties with this

  • Travel pillow

    A good option is this one

June

If you vacation in O'Fallon during June, you might notice that it is extremely warm. Temperatures tend to hover around the 80s F (high 20s C) during the day, while at night they can dip into the low 60s F (high 10s C). Humidity is generally between 50 and 60% during the day. In terms of precipitation, you can expect it to rain regularly.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • Voice and data SIM card

    A SIM card that works in O'Fallon. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airports frequently losing things nowadays, an AirTag can locate it anywhere on earth: AirTag for iPhones.

  • Anti-theft backpack

    For a little 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.

Comfort + Essentials
  • Luggage scale to avoid fees

    Airlines charge large prices for overweight luggage. Avoid surcharges with this

  • Travel neck pillow

    An excellent option is this one

  • 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 step down adapter

    A plug adapter that supports outlet types A and B. Ensure that you choose the correct type. The majority of adapters currently available are simply plug changers and require your devices to adjust the voltage themselves. If yours can't do that they could burn up. This one should be sufficient for most countries.

July

If you visit O'Fallon during July, you may notice that it is constantly hot. Temperatures tend to hover around the high 80s F (low 30s C) during the day, while at night they can dip into the high 60s F (high 10s C). Humidity is generally between 50 and 60% during the day. In terms of precipitation, you can expect it to rain about a third of the time.

What to wear/what to pack:

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

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

  • AirTag to track your luggage

    With airports repeatedly losing things these days, an AirTag can find it anywhere in the world: AirTag for iPhones.

  • Voice and data SIM card

    A SIM card that works in O'Fallon. 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 + Essentials
  • Power bank for devices

    A portable power bank, like this one

  • Travel neck pillow

    A great choice is this one

  • Luggage scale to avoid fees

    Airlines charge excessive penalties for overweight luggage. Avoid surcharges with this

  • Voltage adapter

    A plug adapter that supports outlet types A and B. Check that you find the necessary type. Many adapters that you can buy are simply plugs and require your electronics to change the voltage themselves. If your devices can't do that they could burn up. This one is sufficent for most locations.

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

August

August in O'Fallon is consistently hot. The rain can amount to several inches/centimeters. During this time, temperatures average in the 70s F (mid 20s C) to high 80s F (low 30s C), although night temperatures can dip into the low 60s F (mid 10s C).

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • Voice and data SIM card

    A SIM card that works in O'Fallon. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airports always losing bags nowadays, an AirTag can locate it anywhere on earth: AirTag for iPhones.

  • Money/passport pouch

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

  • Anti-theft backpack

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

Comfort + Essentials
  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Luggage scale to avoid fees

    Airlines charge large prices for overweight luggage. Avoid penalties with this

  • Travel neck pillow

    A good option is this one

  • Power bank for devices

    A portable power bank, like this one

  • Travel adapter

    A plug adapter that supports outlet types A and B. Be careful to choose the right type. A lot of 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 works in most areas.

September

September in this region is pretty consistently hot. Temperatures average in the low 80s F (high 20s C) during the day. It rains about a third of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • Money/passport pouch

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

  • Anti-theft backpack

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

  • Voice and data SIM card

    A SIM card that works in O'Fallon. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airlines frequently losing bags nowadays, an AirTag can find it anywhere in the world: AirTag for iPhones.

Comfort + Essentials
  • Luggage scale to avoid fees

    Airlines charge large prices for overweight luggage. Save money with this

  • Voltage adapter

    A plug adapter that supports outlet types A and B. It's important that you pick the right type. The vast majority of adapters currently sold are just plugs and expect your electronics to adjust the voltage themselves. If your devices can't do that they could get fried. This one should work in most places.

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck support pillow

    Our favorite is this one

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

October

If you vacation in O'Fallon during October, 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 40s F (single digits C). Humidity is generally between 50 and 60% during the day. In terms of precipitation, you can expect it to rain regularly.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • Voice and data SIM card

    A SIM card that works in O'Fallon. 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.

  • Money/passport pouch

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

  • AirTag to track your luggage

    With airlines constantly losing things these days, an AirTag can find it anywhere on earth: AirTag for iPhones.

Comfort + Essentials
  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

  • Travel neck support pillow

    An excellent option is this one

  • Travel adapter

    A plug adapter that supports outlet types A and B. Take care to get the correct kind. Most adapters currently available are just plugs and require your electronics to adjust the voltage themselves. If yours can't do that they could burn up. This one is sufficent for most areas.

  • Power bank for devices

    A portable power bank, like this one

  • Luggage scale to avoid fees

    Airlines charge huge penalties for overweight luggage. Avoid surcharges with this

November

If you visit O'Fallon during November, you may notice that it is relatively cool. Temperatures tend to hover around the 50s F (low 10s C) during the day, while at night they can dip into the 30s F (single digits C). Humidity is generally between 50 and 60% during the day. In terms of precipitation, you can expect it to rain a bit less than half of the time.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • 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 O'Fallon. A good global SIM card works in most countries, but check the country list before buying.

  • AirTag to track your luggage

    With airports always losing luggage these days, an AirTag can help you locate it anywhere in the world: AirTag for iPhones.

  • Anti-theft backpack

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

Comfort + Essentials
  • Travel voltage adapter

    A plug adapter that supports outlet types A and B. Be sure to pick the necessary kind. A lot of adapters available are simply plug changers and require your electronics to adjust the voltage themselves. If your electronics can't do that they could get destroyed. This one should work in most places.

  • Power bank for devices

    A portable power bank, like this one

  • Travel neck pillow

    An excellent option is this one

  • Luggage scale to avoid fees

    Airlines charge huge prices for overweight luggage. Avoid surcharges with this

  • Airplane phone mount

    Make your flight more comfortable with an airplane phone mount

December

December in O'Fallon can be very chilly. The average overnight temperatures in the area are in the 20s F (single digits below 0 C). It tends to rain regularly. But the colder weather doesn't bring low humidity, which is in the 60% to 70% range on average.

What to wear/what to pack:

Clothes + Footwear
Health
Safety + Security
  • AirTag to track your luggage

    With airlines frequently losing bags recently, an AirTag can help you find it anywhere in the world: AirTag for iPhones.

  • 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 O'Fallon. 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.

Comfort + Essentials
  • Luggage scale to avoid fees

    Airlines charge large penalties for overweight luggage. Avoid penalties with this

  • 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 neck pillow

    A great choice is this one

  • Plug adapter

    A plug adapter that supports outlet types A and B. Ensure that you choose the necessary kind. A lot of adapters currently sold are simply plugs and expect your electronics to adjust the voltage themselves. If your electronics can't do that they could get destroyed. This one is sufficent for most locations.

What to do in O'Fallon, Illinois, United States of America

Are you planning a trip to the Midwest and looking for some great tourist attractions? Look no further than O'Fallon, Illinois.

Located in the southwestern part of the state, O'Fallon is a vibrant community with plenty to see and do. From historic sites to outdoor activities, here are some of the top tourist attractions in O'Fallon.

1. O'Fallon Community Park: This expansive park offers something for everyone, including playgrounds, picnic areas, walking trails, sports fields, and more. The park also hosts events throughout the year, including concerts, fireworks displays, and outdoor movies.

2. St. Clair Bowl: Bowling enthusiasts won't want to miss St. Clair Bowl, which features 32 lanes, a snack bar, and an arcade. The facility also hosts leagues and tournaments throughout the year.

3. O'Fallon Historical Society Museum: Learn about the history of O'Fallon and the surrounding area at this museum, which is housed in a restored train depot. Exhibits showcase local artifacts, photographs, and documents, giving visitors a glimpse into the region's past.

4. Taubman Prestige Outlets: Shop till you drop at this outlet mall, which features designer stores, restaurants, and a movie theater. The mall is located just off Interstate 64, making it an easy stop for travelers.

5. Gateway Motorsports Park: Racing fans will love this racing facility, which hosts events throughout the year, including NASCAR, NHRA drag racing, and more. The park also features an indoor karting track for those who want to try their hand at racing.

6. Hesse Park: This beautiful park is a great place to relax and enjoy nature. The park features walking trails, picnic areas, and a fishing pond, as well as a playground for kids.

7. Eckert's Country Store & Farms: Get a taste of rural life at Eckert's, which features a farm store, bakery, and pick-your-own fruit and vegetable fields. The farm also hosts seasonal events, including pumpkin patches and Christmas tree farms.

Whether you're looking for outdoor adventure or shopping and entertainment, O'Fallon has something for everyone. Be sure to add these top tourist attractions to your itinerary when planning your next trip to Illinois.

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.

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