When to go · Saint Louis, United States
Best Time to Visit Saint Louis
Aim for May, September and July: that's when Saint Louis's weather is at its best. The full month-by-month picture is below.
Go now
May, September, July
Comfortable and drier
Shoulder
June, August, November
Fewer crowds, a trade-off
Think twice
February, December
Hottest is August (28°C)
Saint Louis weather, month by month
| Month | High | Low | Rain | Feel |
|---|---|---|---|---|
| Jan | -1°C / 30°F | -8°C / 18°F | 35mm | cold, mostly dry |
| Feb | 0°C / 32°F | -9°C / 16°F | 64mm | cold, some rain |
| Mar | 8°C / 46°F | -3°C / 27°F | 83mm | cold, some rain |
| Apr | 14°C / 57°F | 2°C / 36°F | 67mm | cool, some rain |
| MayBEST | 21°C / 70°F | 9°C / 48°F | 41mm | mild, mostly dry |
| Jun | 27°C / 81°F | 15°C / 59°F | 95mm | warm, some rain |
| JulBEST | 28°C / 82°F | 17°C / 63°F | 80mm | warm, some rain |
| Aug | 28°C / 82°F | 17°C / 63°F | 100mm | warm, some rain |
| SepBEST | 23°C / 73°F | 13°C / 55°F | 66mm | warm, some rain |
| Oct | 17°C / 63°F | 8°C / 46°F | 86mm | mild, some rain |
| Nov | 8°C / 46°F | 0°C / 32°F | 35mm | cold, mostly dry |
| Dec | 4°C / 39°F | -2°C / 28°F | 47mm | cold, mostly dry |
Averages from Open-Meteo ERA5 climate reanalysis, 2019 to 2023. Highs and lows are daily averages for each month; rain is the monthly total. Tap a month for a detailed guide.
Want the timing decided for you? A Local Friend in Saint Louis plans around the seasons for you.