Grant Woods Forest Preserve Weather Forecast

    • 57
    • 72

    Increasing Clouds

    • 54
    • 74

    Partly Sunny

    • 54
    • 77

    Mostly Sunny

    • 56
    • 78

    Mostly Sunny

    • 58
    • 80

    Partly Sunny

    • 47
    • 74

    Chance Rain Showers

Today 29 Aug Lake

Partly cloudy in the Morning, then becoming mostly cloudy. Highs in the lower 70s Inland, but only in the upper 60s near the lake. Northeast Winds 5 to 10 Mph.

Tonight 29 Aug Lake

Increasing cloudiness. A slight chance of Showers after midnight. Lows in the upper 50s. Northeast Winds around 5 Mph. Chance of precipitation 20 percent.

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  • Temperature Real-Time

Grant Woods Forest Preserve Temperature Statistics

August Temperature

Chicago/Waukegan Regional Airport (13.7 miles)

  • Lowest 3 August, 2025

    54.6 °F

  • Average August

    74.6 °F

  • Highest 9 August, 2025

    96.7 °F

Climate (2020–Present)

Chicago/Waukegan Regional Airport (13.7 miles)

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  • Average Low 2020–2025

    42.3 °F

  • Average 2020–2025

    51.1 °F

  • Average High 2020–2025

    59.6 °F
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