Best Time to Visit St. Louis
Best time: Aug, Jun, Sep, Jul.
Jul is warmest (32.5°C high); May is rainiest (103 mm).
St. Louis weather by month
| Month | High °C | Low °C | Rain mm | Sun hrs |
|---|---|---|---|---|
| Jan | 3.4 | -6.3 | 51 | 3 |
| Feb | 7.1 | -3.6 | 56 | 4.4 |
| Mar | 13.3 | 1.7 | 89 | 6.1 |
| Apr | 20 | 7.3 | 94 | 7.8 |
| May | 25.5 | 13.2 | 103 | 9 |
| Jun | 30.3 | 18.5 | 93 | 9.9 |
| Jul | 32.5 | 20.8 | 95 | 9.9 |
| Aug | 31.5 | 19.5 | 81 | 9 |
| Sep | 27.8 | 15 | 82 | 7.5 |
| Oct | 21.4 | 8.3 | 70 | 5.4 |
| Nov | 13.1 | 2.3 | 86 | 3.4 |
| Dec | 6.3 | -3.3 | 76 | 2.7 |
Average high temperature
Best months by activity
Overall: AugJunSepJul
Beaches: AugJunJulSep
Hiking: OctAprMaySep
Sightseeing: SepJunOctMay
St. Louis quick facts
What to pack
Cold months (Jan, Feb, Mar, Nov, Dec): warm layers and a coat.
Wet months (Apr, May, Jun, Jul): raincoat and umbrella.
Frequently asked questions
When is the best time to visit St. Louis?
Aug, Jun, Sep, Jul.
What is the rainiest month?
May, about 103 mm.
What is the warmest month?
Jul, with average highs of 32.5°C.
Where to stay
See St. Louis hotels · Book St. Louis tours & activities
All destinations · Best time to visit New York · Best time to visit Los Angeles · Best time to visit Miami · Best time to visit San Francisco
Climate data: Open-Meteo Historical (ERA5), 1991–2020 climate normals.
Licensed under CC BY 4.0.
Open-Meteo.