Which is the hottest month in St Louis?

The hottest time of year in St Louis is normally July. Expect maximum daytime temperatures to reach 32°C with high heat and humidity.

Which month has the most rain in St Louis?

In terms of rainfall, May is usually the wettest month in St Louis with 120mm on average. There are normally 12 days in May with some rain.

When is it sunniest in St Louis?

The sunniest time of year in St Louis is normally July with bright sunshine on average for 69% of daylight hours; that's 10 hours of sunshine per day.

Best time to visit St Louis

Q: When is the best time to visit St Louis?

The best times to visit St Louis, Missouri are in May and September Maximum daytime temperature = 22 - 30°C. Daily hours of sunshine = 8 hours or more.

The best times to visit St Louis, Missouri are in May and September based on our default weather conditions. Update your weather preferences to see which months best match.

St Louis by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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When is the best time to visit St Louis?

The best times to visit St Louis, Missouri are in May and September based on the following average weather conditions.

Maximum daytime temperature = 72 - 86°F [remove]
Daily hours of sunshine = 8 hours or more [remove]

Change the criteria to reflect your weather preferences.

1.5
Jan
2
Feb
2
Mar
4
Apr
5
May
4
Jun
3.5
Jul
4
Aug
5
Sep
4
Oct
1.5
Nov
1.5
Dec

Change criteria

Max Day Temperature (°F)

37
Jan
43
Feb
55
Mar
68
Apr
77
May
86
Jun
90
Jul
88
Aug
81
Sep
68
Oct
55
Nov
43
Dec

Hours of Sunshine (daily)

5
Jan
6
Feb
6
Mar
8
Apr
9
May
10
Jun
10
Jul
9
Aug
8
Sep
7
Oct
5
Nov
4
Dec

Best time to visit

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

The weather guide for Missouri (St Louis) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Metric (°C) | Imperial (°F)