Cook County Forest Preserve Weather Forecast
- 52
- 71
Slight Chance Rain Showers
- 32
- 68
Severe Tstms
- 29
- 43
Partly Sunny
- 38
- 51
Partly Sunny
- 48
- 60
Slight Chance Thunderstorms
- 50
- 72
Chance Thunderstorms
Today 25 Mar Northern Cook
Mostly cloudy in the Morning, then becoming partly cloudy. Breezy. Highs around 70. South Winds 10 to 15 Mph with Gusts up to 30 Mph.
Tonight 25 Mar Northern Cook
Mostly cloudy in the Evening, then becoming partly cloudy. A slight chance of Showers and Thunderstorms in the late evening and early morning. Lows in the mid 50s. Southwest Winds 5 to 10 Mph. Chance of precipitation 20 percent.
Cook County Forest Preserve Temperature Statistics
March Temperature
Chicago, Chicago-O'Hare International Airport (2.5 miles)
Lowest 17 March, 2026
14.6 °FAverage March
42.3 °FHighest 21 March, 2026
77.6 °F
Climate (2021–Present)
Chicago, Chicago-O'Hare International Airport (2.5 miles)
Average Low 2021–2026
45.3 °FAverage 2021–2026
53.5 °FAverage High 2021–2026
61.8 °F