Cook County Forest Preserve Weather Forecast

    • 53
    • 68

    Chance Rain Showers

    • 43
    • 67

    Rain Showers

    • 37
    • 52

    Rain Showers Likely

    • 50
    • 56

    Chance Rain Showers

    • 63
    • 76

    Rain Showers Likely

    • 59
    • 78

    Rain Showers Likely

    • 43
    • 72

    Rain Showers Likely

Today 8 Apr Northern Cook

Partly cloudy. Breezy. Highs in the mid 60s Inland, but only in the lower 60s near the lake. South Winds 15 to 20 Mph, becoming 15 to 25 Mph in the afternoon. Gusts up to 35 Mph.

Tonight 8 Apr Northern Cook

Partly cloudy in the Evening, then becoming cloudy. A slight chance of Showers late in the evening. A chance of Showers and a slight chance of Thunderstorms after midnight. Breezy. Lows in the lower 50s. Southwest Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of precipitation 50 percent.

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Cook County Forest Preserve Temperature Statistics

April Temperature

Chicago, Chicago-O'Hare International Airport (2.5 miles)

  • Lowest 6 April, 2026

    33.1 °F

  • Average April

    46.3 °F

  • Highest 2 April, 2026

    70.6 °F

Climate (2021–Present)

Chicago, Chicago-O'Hare International Airport (2.5 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    61.8 °F
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