Chicago, Illinois weather in February

Averages from 2021–2025 (141 days of record).

Average high: 36°F
Average low: 21°F
Rainy days: ~7 per month
Total precipitation: 2.0 in
Warmest recorded: 71°F
Coldest recorded: -7°F

Expect February days in Chicago, Illinois to top out around 36°F and cool to about 21°F overnight, with roughly 7 days of measurable rain across the month. In recent years February has ranged from -7°F to 71°F.

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Current Chicago, Illinois forecast → · Historical data by Open-Meteo (ERA5).