🇺🇸 Chicago vs 🇺🇸 Saint Louis
Weather Comparison
Current Weather Right Now
🇺🇸
Chicago
43°F
Broken Clouds
Feels like 38°F
H 45°F / L 41°F
Humidity: 60%
🇺🇸
Saint Louis
51°F
Clear Sky
Feels like 48°F
H 54°F / L 48°F
Humidity: 49%
Climate Overview
Chicago
Humid continental — cold harsh winters, hot humid summers, severe storms
Chicago lives up to its Windy City nickname. Lake Michigan creates its own microclimate — cooler summers and heavier lake-effect snow in winter. Summers are warm but brief; winters are among the harshest of any major American city.
Saint Louis
St. Louis at the confluence of the Missouri and Mississippi Rivers has one of America's most oppressive summer climates. The rivers converge here creating maximum humidity, and the city sits in a bowl that traps heat. The 2012 heat wave killed many here, and the Gateway Arch's stainless steel surface is so thermally conductive it can be felt at distance on hot days.
Seasonal Comparison
| Season | 🇺🇸 Chicago | 🇺🇸 Saint Louis |
|---|---|---|
| Spring | 35–65°F March–May | — |
| Summer | 70–84°F June–August | — |
| Fall | 45–68°F September–November | — |
| Winter | 17–32°F December–February | — |
Chicago vs Saint Louis: Frequently Asked Questions
Does Chicago or Saint Louis have better weather?
Chicago and Saint Louis have very different climates. Humid continental — cold harsh winters, hot humid summers, severe storms Saint Louis: St. Louis at the confluence of the Missouri and Mississippi Rivers has one of America's most oppress. The best city depends on your preferred season and temperature range.
When is the best time to visit Chicago vs Saint Louis?
Best time for Chicago: May, June, September. Best time for Saint Louis: spring and fall.