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Best time to visit St Louis, MO, USA

Our verdict

The best time to visit St Louis is November

When’s the best time to visit St Louis, you ask? Based on several factors like the weather and climate, cost of flights and hotels, peak travel seasons and much more, the best time to go to St Louis is November.

In summer, the temperature in St Louis can rise as high as 39℃ (102℉). The average low temperatures in winter float around 18℃ (65℉), while the coldest it gets down to is about 17℃ (62℉).

If you’re keen to work on your tan in St Louis, you’re most likely get the longest days between sun-up and sun-down around May. You don’t want to get wet on your holiday, do you? Well if you’re trying to avoid the rain, then steer clear of St Louis in August. Head over there in January instead if you want to increase your chances of not being rained on.

Continue reading to find out loads more about when to travel to St Louis, then use the handy tools below to search for the best flight and hotel options that are right for you.

Warmest month

October

Least rainfall

January

Most daylight

May

St Louis seasons

Before you continue, it’s important to know when the seasons are in St Louis as they might be different to yours depending on where in the world you’re travelling from. St Louis is in the Northern Hemisphere, so the seasons fall during these months:

SeasonMonths
Summer June to August
Autumn/fall September to November
Winter December to February
Spring March to May

Average temperatures in St Louis

If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in St Louis for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.

St Louis climate by month

If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in St Louis for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.

Jump to:

JAN
FEB
MAR
APR
MAY
JUN
JUL
AUG
SEP
OCT
NOV
DEC

St Louis in January

  • Average temperature: 25℃ (76℉)
  • Average high temperature: 33℃ (91℉)
  • Average low temperature: 18℃ (65℉)
  • Average humidity: 22%
  • Average sunny days: 31 days
  • Average rainfall: 0mm (0") over 0 days
31 days
of pure sunshine
0 days
of showers or rain

What to pack: If you’re heading to St Louis in January, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


St Louis in February

  • Average temperature: 25℃ (78℉)
  • Average high temperature: 34℃ (93℉)
  • Average low temperature: 19℃ (65℉)
  • Average humidity: 27%
  • Average sunny days: 28 days
  • Average rainfall: 0mm (0") over 0 days
28 days
of pure sunshine
0 days
of showers or rain

What to pack: If you’re heading to St Louis in February, make sure you pack t-shirts for the daytime and maybe a light jumper for the evenings as it cools down a bit.


St Louis in March

  • Average temperature: 27℃ (80℉)
  • Average high temperature: 36℃ (97℉)
  • Average low temperature: 19℃ (67℉)
  • Average humidity: 35%
  • Average sunny days: 31 days
  • Average rainfall: 1mm (0") over 0 days
31 days
of pure sunshine
0 days
of showers or rain

What to pack: If you’re heading to St Louis in March, make sure you pack a light jumper or hoodie for the evenings, and t-shirts and sun protection for the daytime.


St Louis in April

  • Average temperature: 27℃ (81℉)
  • Average high temperature: 37℃ (98℉)
  • Average low temperature: 20℃ (68℉)
  • Average humidity: 41%
  • Average sunny days: 29 days
  • Average rainfall: 1mm (0") over 1 days
29 days
of pure sunshine
1 days
of showers or rain

What to pack: If you’re heading to St Louis in April, make sure you pack t-shirts, shorts and sun protection for the day, and maybe a very thin sweater for the evenings if you're a cold frog.


St Louis in May

  • Average temperature: 28℃ (83℉)
  • Average high temperature: 37℃ (99℉)
  • Average low temperature: 21℃ (70℉)
  • Average humidity: 47%
  • Average sunny days: 30 days
  • Average rainfall: 0mm (0") over 0 days
30 days
of pure sunshine
0 days
of showers or rain

What to pack: If you’re heading to St Louis in May, make sure you pack t-shirts, shorts and sun protection for the day, and maybe a very thin sweater for the evenings if you're a cold frog.


St Louis in June

  • Average temperature: 28℃ (83℉)
  • Average high temperature: 36℃ (97℉)
  • Average low temperature: 23℃ (73℉)
  • Average humidity: 56%
  • Average sunny days: 26 days
  • Average rainfall: 4mm (0") over 2 days
26 days
of pure sunshine
2 days
of showers or rain

What to pack: If you’re heading to St Louis in June, make sure you pack t-shirts, shorts and sun protection for the day, and maybe a very thin sweater for the evenings if you're a cold frog.


St Louis in July

  • Average temperature: 29℃ (84℉)
  • Average high temperature: 34℃ (93℉)
  • Average low temperature: 25℃ (77℉)
  • Average humidity: 64%
  • Average sunny days: 20 days
  • Average rainfall: 19mm (1") over 8 days
20 days
of pure sunshine
8 days
of showers or rain

What to pack: If you’re heading to St Louis in July, make sure you pack t-shirts and shorts.. It stays warm all day and night.


St Louis in August

  • Average temperature: 29℃ (84℉)
  • Average high temperature: 34℃ (92℉)
  • Average low temperature: 26℃ (79℉)
  • Average humidity: 68%
  • Average sunny days: 15 days
  • Average rainfall: 66mm (3") over 13 days
15 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to St Louis in August, make sure you pack t-shirts and shorts.. It stays warm all day and night.


St Louis in September

  • Average temperature: 30℃ (85℉)
  • Average high temperature: 34℃ (94℉)
  • Average low temperature: 26℃ (79℉)
  • Average humidity: 67%
  • Average sunny days: 16 days
  • Average rainfall: 47mm (2") over 13 days
16 days
of pure sunshine
13 days
of showers or rain

What to pack: If you’re heading to St Louis in September, make sure you pack t-shirts and shorts.. It stays warm all day and night.

St Louis in October

  • Average temperature: 31℃ (88℉)
  • Average high temperature: 37℃ (99℉)
  • Average low temperature: 26℃ (79℉)
  • Average humidity: 51%
  • Average sunny days: 26 days
  • Average rainfall: 10mm (0") over 4 days
26 days
of pure sunshine
4 days
of showers or rain

What to pack: If you’re heading to St Louis in October, make sure you pack t-shirts, shorts and sun protection.


St Louis in November

  • Average temperature: 29℃ (84℉)
  • Average high temperature: 36℃ (96℉)
  • Average low temperature: 24℃ (75℉)
  • Average humidity: 33%
  • Average sunny days: 29 days
  • Average rainfall: 1mm (0") over 1 days
29 days
of pure sunshine
1 days
of showers or rain

What to pack: If you’re heading to St Louis in November, make sure you pack t-shirts, shorts and sun protection.


St Louis in December

  • Average temperature: 26℃ (79℉)
  • Average high temperature: 33℃ (92℉)
  • Average low temperature: 20℃ (68℉)
  • Average humidity: 24%
  • Average sunny days: 30 days
  • Average rainfall: 0mm (0") over 1 days
30 days
of pure sunshine
1 days
of showers or rain

What to pack: If you’re heading to St Louis in December, make sure you pack t-shirts and shorts.. It stays pretty warm most of the time.


Top FAQs

The hottest month of the year in St Louis is usually October, where temperatures tend to rise to around 37℃ (99℉) in the middle of the day or early afternoon.
The month with the least amount of rain in St Louis is generally around January. The dry season often coincides with cooler weather, so you should check the temperatures in January first to make sure it’s still a good time to go.
The rainiest time of year in St Louis is generally around August, although the wetter season can sometimes extend a few months either side of August too.
If you want to get the most out of your time visiting St Louis, or if you're just afraid of the dark, the days in May are usually the longest between sunrise and sunset.

St Louis map