Chicago: Weather Guide & Climate
Complete month-by-month weather guide: Chicago. Best time to visit: May, June, September, October. Plan your trip with detailed climate data.
☀️ Climate Overview
Chicago has a Moderate climate with average yearly highs of 14°C, lows of 7°C, and approximately 10 rainy days per month.
The best time to visit Chicago is during May, June, September, October, when conditions are perfect for sightseeing and exploration
Drier season: Feb–Dec Wetter season: Jan–Oct
Now
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Air Quality
Hottest
Coldest
Driest Month
Windiest Month
26 km/h
March (gusts 46)
Forecast for your trip dates
Up to 14 days aheadWeather by Season
Spring
Mar–May
Summer
Jun–Aug
Autumn
Sep–Nov
Winter
Dec–Feb
Month-by-Month Weather Table
January
February
March
April
May
BestJune
BestJuly
August
September
BestOctober
BestNovember
December
| Month | High | Low | Rain | Sunshine | Humidity | UV Index | Crowds | Condition | View Details |
|---|---|---|---|---|---|---|---|---|---|
| January | 0°C | -5°C | 10d (71mm) | 5.1h | 74% Humid | 2.6 Moderate | | Good | View Details → |
| February | 2°C | -5°C | 7d (45mm) | 7.4h | 69% Humid | 4.4 Moderate | | Good | View Details → |
| March | 8°C | 1°C | 12d (90mm) | 8h | 69% Humid | 5.7 High | | Good | View Details → |
| April | 12°C | 5°C | 12d (92mm) | 9.4h | 67% Humid | 7.5 Very High | | Good | View Details → |
| May (best) | 18°C | 10°C | 11d (106mm) | 10.6h | 70% Humid | 8.8 Very High | | Excellent | View Details → |
| June (best) | 25°C | 17°C | 9d (100mm) | 12.3h | 69% Humid | 9.9 Very High | | Excellent | View Details → |
| July | 26°C | 19°C | 11d (93mm) | 12h | 74% Humid | 9.4 Very High | | Good | View Details → |
| August | 26°C | 19°C | 8d (60mm) | 11.7h | 73% Humid | 8.6 Very High | | Good | View Details → |
| September (best) | 23°C | 15°C | 7d (62mm) | 9.9h | 71% Humid | 6.8 High | | Excellent | View Details → |
| October (best) | 17°C | 9°C | 10d (87mm) | 7.9h | 68% Humid | 4.6 Moderate | | Excellent | View Details → |
| November | 10°C | 3°C | 8d (53mm) | 6.4h | 68% Humid | 3.1 Moderate | | Good | View Details → |
| December | 4°C | -2°C | 9d (66mm) | 4.9h | 73% Humid | 2.2 Moderate | | Good | View Details → |
Chicago
Architectural marvels with Cloud Gate (The Bean) and Architecture boat tour, deep-dish pizza, lakefront, and world-class museums.
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Frequently Asked Questions
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