St. Louis County, Missouri, United States of America: What to pack, what to wear, and when to go [2022]
This article contains affiliate links to Amazon and other vendors. We may earn commission from purchases made through these links.
Traveling to St. Louis County, Missouri, United States of America? If you're planning to go to St. Louis County, this is some important information about when to go, what to wear, and what to pack.
Contents
- When to go to St. Louis County
- Important essentials for St. Louis County
- Activities for St. Louis County
- St. Louis County in January: weather and what to pack
- St. Louis County in February: weather and what to pack
- St. Louis County in March: weather and what to pack
- St. Louis County in April: weather and what to pack
- St. Louis County in May: weather and what to pack
- St. Louis County in June: weather and what to pack
- St. Louis County in July: weather and what to pack
- St. Louis County in August: weather and what to pack
- St. Louis County in September: weather and what to pack
- St. Louis County in October: weather and what to pack
- St. Louis County in November: weather and what to pack
- St. Louis County in December: weather and what to pack

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. Louis County, Missouri, United States of America
Based on the climate and weather in St. Louis County, the best time to go is September. See below for details.
Important essentials for St. Louis County, Missouri, United States of America
Here are some general tips on what to wear in St. Louis County, as well as several items to remember to pack when traveling there.
COVID-19 ESSENTIALS FOR 2022
Travel insurance that includes COVID-19 coverage
Cases are climbing again, and areas are returning to lockdown. If you or a companion get COVID-19, you may be stuck with no way home -- but travel insurance can protect you. Learn more about COVID-19 and travel insurance
-
Touchless thermometer
A touchless thermometer is important to have.
-
Kids' KN95 masks
N95 masks don't exist for kids. These are a good alternative (and can also be used by adults if N95 masks are not available).
-
A vaccine card protector
Vaccine cards may get worn. An unreadable card can cause severe consequences. This vaccine card protector helps stop that.
-
N95 masks
These N95 masks provide the best level of COVID protection you can have.
-
Hand sanitizer
This hand sanitizer is an easy-to-carry TSA-friendly choice.
-
(U.S. Residents) Telehealth COVID-19 test for entry to U.S.
U.S. residents still need a certified COVID-19 test to return home, but it can now be via Zoom. Learn more
-
Travel disinfecting wipes
Use these to sanitize plane and hotel surfaces.
General health necessities
Don't forget these
-
Voice and data SIM card
A SIM card that works in St. Louis County. A good global SIM card works in most countries, but check the country list before buying.
-
For families with young children
-
Power bank for devices
A portable power bank, like this one
-
Airplane or car necessities
-
Plug adapter
A plug adapter that supports outlet types A and B. This one should work in most countries, but you may want to check with your hotel.
-
Money/passport pouch
A money pouch is vital for protecting your passport and credit cards.
What to wear/what to pack for St. Louis County, Missouri, United States of America by month
Already know when you're traveling?
January
Traveling to St. Louis County in January, you will notice that it can be very chilly. Daytime temperatures are in the high 30s F (single digits C).
What to wear/what to pack:
-
Thermal undergarments
Our picks:
-
Very heavy heated socks
Like these
-
Extreme weather jacket shell
These are a great value:
-
Heavy sweaters
-
Coveralls/snow pants
Here are some of the best values:
-
Pajamas
-
Extreme cold weather gloves
-
Scarf/neck warmer
-
Lip balm
The best is: this
-
Fleece inner layer
-
Insulated ice boots
We use:
-
Waterproof snow boots
In addition to standard shoes, it's important to bring snow boots. For visiting St. Louis County, a great option is these boots:
-
Waterproof jacket that can be used in snow
-
A windproof umbrella
This is important here. This one is a great option.
-
Ski accessories
St. Louis County has some good ski slopes If you plan to ski, we also recommend:
- day pack
- mittens (in addition to gloves)
- thermal pants
- lip balm with SPF
- ski socks (at least 2 pairs)
- ...and of course your ski gear
February
February for St. Louis County is cold. Temperatures average in the 40s F (single digits C) during the day.
What to wear/what to pack:
-
Insulated water bottle
Our pick:
-
Heavy jacket
-
Lip balm
Our choice: this one
-
Warm pants or jeans
-
Gloves
-
Sweaters
-
Heavy socks
Such as:
-
Cold weather footwear
-
Waterproof snow boots
In addition to standard shoes, you should bring snow boots. For travel to St. Louis County, we suggest these boots:
-
Waterproof jacket that can be used in snow
-
A wind resistant umbrella
This is essential in this type of weather. This one is a great choice.
-
Ski accessories
St. Louis County has some excellent skiing If you plan to ski, we also suggest:
- day pack
- mittens (in addition to gloves)
- thermal pants
- lip balm with SPF
- ski socks (at least 2 pairs)
- ...and of course your ski gear
March
If you go to St. Louis County in March, you will notice that it is brisk. Daytime temperatures are in the 50s F (low 10s C).
What to wear/what to pack:
-
Light gloves or mittens
-
Jacket or coat
-
Fleece
-
Extra socks
-
Warm pants or jeans
-
Lip balm
In our opinion, the best is: this
-
Standard footwear
-
Waterproof snow boots
In addition to standard footwear, you should bring snow boots. For traveling to St. Louis County, we suggest these boots:
-
Waterproof jacket that can be used in snow
-
A umbrella
This is vital here. This one is a perfect choice.
-
Ski accessories
St. Louis County has some good ski slopes If you plan to ski, we also suggest:
- day pack
- mittens (in addition to gloves)
- thermal pants
- lip balm with SPF
- ski socks (at least 2 pairs)
- ...and of course your ski gear
April
In April, St. Louis County is balmy. Temperatures routinely are in the high 60s F (high 10s C) and about half of the time jump into the low 70s F (low 20s C) range. At night, lows are in the 40s F (single digits C). This is also a rainy time for St. Louis County, with several of the days of the month having rain.
What to wear/what to pack:
-
Light jacket or fleece
-
Dresses
-
Light and heavy skirts
-
Standard footwear
-
Long sleeve shirts or blouses
-
Pants or jeans
-
Extra socks
-
A rain jacket to layer with another jacket
-
100% waterproof footwear
We use these rain boots:
-
Rain pants
These will be a lifesaver in a rainstorm.
-
Waterproof phone bag
-
Windproof umbrella
This one is a perfect choice.
-
Waterproof bag/luggage cover
So your bags remain dry. We suggest:
May
In May, St. Louis County is warm. Temperatures routinely are in the 70s F (mid 20s C) and regularly jump into the low 80s F (high 20s C) range. At night, lows are in the 50s F (low 10s C). This is also a rainy time for St. Louis County, with several of the days of the month having rain.
What to wear/what to pack:
-
Extra socks
-
Breathable footwear or sandals
-
Light dresses
You can find some great options here
-
Long and short sleeve shirts
-
Short pants or heavy shorts
-
Sandals
-
Bug repellent
-
Sunscreen lotion
-
Light skirts
-
Beach necessities
If you're going to the beach:
-
A rain poncho to layer with another jacket
-
100% waterproof footwear
We like rain boots:
-
Rain pants
These pants are essential in a rainstorm.
-
Waterproof phone bag
-
Wind resistant umbrella
This one is an excellent choice.
-
Waterproof bag/luggage cover
So your belongings don't get wet. We suggest:
June
If you go to St. Louis County in June, you will notice that it is pretty consistently hot. Daytime temperatures are in the 80s F (high 20s C).
What to wear/what to pack:
-
Skirts
-
Waterproof sandals
-
Loose-fit shorts
-
Bug repellent
-
Cool and dry dresses
These dresses can provide UV protection and help you stay cool.
-
Breatheable shirts
A breatheable shirt can make you comfortable and protect you from skin damage:
-
Insulated water bottle
Our first choice:
-
Sunglasses
-
Sunscreen lotion, moderate SPF
-
If you're going to the beach
-
A rain poncho to layer with another jacket
-
100% waterproof footwear
We suggest these rain boots:
-
Rain pants
Rain pants can be essential in a rainstorm.
-
Waterproof phone bag
-
Umbrella
This one is a great one to buy.
-
Waterproof bag/luggage cover
So your suitcases don't get wet. We suggest:
July
If you are traveling to St. Louis County in July, you will notice that it can be sweltering. Daytime temperatures are in the high 80s F (low 30s C).
What to wear/what to pack:
-
Loose-fit shorts
-
Skirts
-
Insulated water bottle
Our best choice:
-
Waterproof sandals
-
Bug repellent
-
Sunscreen lotion, moderate SPF
-
Breatheable shirts
A breatheable shirt can make you comfortable and guard against the sun:
-
Sunglasses
-
Cool and dry dresses
These dresses include UV protection and keep you cool.
-
If you're going to the beach
-
A rain coat to layer with a coat
-
100% waterproof footwear
We like these rain boots:
-
Rain pants
These pants are essential in a storm.
-
Waterproof phone bag
-
Wind resistant umbrella
This one is a perfect choice.
-
Waterproof bag/luggage cover
So your bags remain dry. We recommend:
August
August in St. Louis County is consistently hot. The rain can amount to several inches/centimeters. During this time, temperatures average in the 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:
-
Cool and dry dresses
These dresses to provide UV protection and help you stay cool.
-
Waterproof sandals
-
Bug repellent
-
Sunglasses
-
Breatheable shirts
A cooling shirt can keep you comfortable and guard against UV rays:
-
Skirts
-
Sunscreen lotion, moderate SPF
-
Loose-fit shorts
-
Insulated water bottle
Our pick:
-
If you're going to the beach
-
A rain coat to layer with another jacket
-
100% waterproof footwear
We recommend rain boots:
-
Rain pants
These pants will be a lifesaver in a rainstorm.
-
Waterproof phone bag
-
Wind resistant umbrella
This one is a great one to buy.
-
Waterproof bag/luggage cover
So your things remain dry. We suggest:
September
If you vacation in St. Louis County during September, you will probably notice that it is hot. Temperatures tend to hover around the low 80s F (high 20s C) during the day, while at night they can dip into the 50s F (low 10s C).
What to wear/what to pack:
-
Sunscreen lotion
-
Extra socks
-
Light dresses
You can find some great options here
-
Light skirts
-
Breathable footwear or sandals
-
Bug repellent
-
Long and short sleeve shirts
-
Short pants or heavy shorts
-
Sandals
-
Beach necessities
If you're going to the beach:
-
A rain coat to layer with a jacket
-
100% waterproof footwear
We suggest these rain boots:
-
Rain pants
These can be essential in a rainstorm.
-
Waterproof phone bag
-
Wind resistant umbrella
This one is a great one to buy.
-
Waterproof bag/luggage cover
So your belongings don't get wet. We like:
October
October in St. Louis County is balmy. The average overnight temperatures in the area are in the 40s F (single digits C), with a few days below 32 F (single digits C).
What to wear/what to pack:
-
Extra socks
-
Light jacket or fleece
-
Dresses
-
Light and heavy skirts
-
Pants or jeans
-
Standard footwear
-
Long sleeve shirts or blouses
-
A rain coat to layer with a jacket
-
100% waterproof footwear
We like these rain boots:
-
Rain pants
Rain pants will be essential in a rainstorm.
-
Waterproof phone bag
-
Umbrella
This one is a great option.
-
Waterproof bag/luggage cover
So your bags stay dry. We like:
November
November in this region is crisp. Temperatures average in the 50s F (low 10s C) during the day.
What to wear/what to pack:
-
Lip balm
In our opinion, the best option: this one
-
Jacket or coat
-
Extra socks
-
Light gloves or mittens
-
Fleece
-
Warm pants or jeans
-
Standard footwear
-
Waterproof snow boots
In addition to day-to-day footwear, you should bring snow boots. For travel to St. Louis County, a great option is these boots:
-
Waterproof jacket that can be used in snow
-
A wind resistant umbrella
This is important here. This one is a perfect option.
-
Ski accessories
St. Louis County has some famous skiing If you plan to ski, we also recommend:
- day pack
- mittens (in addition to gloves)
- thermal pants
- lip balm with SPF
- ski socks (at least 2 pairs)
- ...and of course your ski gear
December
December in St. Louis County is cold. The average overnight temperatures in the area are in the low 20s F (single digits below 0 C).
What to wear/what to pack:
-
Insulated water bottle
Our fave:
-
Heavy jacket
-
Lip balm
Our choice: this
-
Gloves
-
Warm pants or jeans
-
Heavy socks
Such as:
-
Sweaters
-
Cold weather footwear
-
Waterproof snow boots
In addition to day-to-day shoes, you should bring snow boots. For traveling to St. Louis County, a great option is these boots:
-
Waterproof jacket that can be used in snow
-
A wind resistant umbrella
This is important here. This one is an excellent option.
-
Ski accessories
St. Louis County has some good ski slopes If you plan to ski, we would suggest:
- day pack
- mittens (in addition to gloves)
- thermal pants
- lip balm with SPF
- ski socks (at least 2 pairs)
- ...and of course your ski gear
Activities for St. Louis County, Missouri, United States of America
Here are some activity recommendations and activity-specific packing tips for St. Louis County.
If you visit the Museum of Transportation, wear museum-appropriate clothing and take:
-
Ultralight day pack
Like this, so you don't have to lug around a heavy suitcase.
-
Comfy walking shoes
-
Small portable cooler
Save money on drinks with this portable cooler.
Check out our guides for these other locations: Mount Dalei, China, La Entrada, Honduras, Harrison, Michigan, United States of America, Ogunquit, Maine, United States of America, Marlborough, Massachusetts, United States of America, Ailsa Craig, Scotland, United Kingdom, Lion's Head, Ontario, Canada, Singye Dzong, Bhutan, Chuuk Lagoon, Federated States of Micronesia, Okinawa, Japan, and Chimanimani, Zimbabwe.