Old School Forest Preserve Weather Forecast

    • 64
    • 67

    Rain Showers Likely

    • 53
    • 71

    Rain Showers

    • 48
    • 64

    Mostly Sunny

    • 47
    • 63

    Partly Sunny

    • 45
    • 68

    Mostly Sunny

    • 44
    • 61

    Mostly Sunny

    • 49
    • 64

    Partly Sunny

Today 30 Sep Lake

Showers likely early in the Afternoon, then a chance of Showers late. Near steady temperature in the mid 60s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 70 percent.

Tonight 30 Sep Lake

A chance of Showers early in the Evening, then Showers in the late evening and overnight. A slight chance of Thunderstorms late. Near steady temperature in the mid 60s. Southwest Winds 5 to 10 Mph. Chance of precipitation 90 percent.

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Old School Forest Preserve Temperature Statistics

September Temperature

Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)

  • Lowest 26 September, 2026

    47.6 °F

  • Average September

    69.3 °F

  • Highest 2 September, 2026

    96.7 °F

Climate (2021–2026)

Chicago / Wheeling, Pal-Waukee Airport (9.9 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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