Old School Forest Preserve Weather Forecast

    • 48
    • 77

    Chance Thunderstorms

    • 42
    • 56

    Partly Sunny

    • 46
    • 58

    Mostly Cloudy

    • 50
    • 62

    Slight Chance Rain Showers

    • 53
    • 70

    Partly Sunny

    • 57
    • 75

    Partly Sunny

Today 19 May Lake

Mostly cloudy. A slight chance of Showers and Thunderstorms. Breezy with Highs in the upper 70s. Southwest Winds 15 to 20 Mph, becoming west in the afternoon. Gusts up to 30 Mph. Chance of precipitation 30 percent.

Tonight 19 May Lake

Partly cloudy. Lows in the upper 40s. Northwest Winds 10 to 15 Mph.

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Old School Forest Preserve Temperature Statistics

May Temperature

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

  • Lowest 2 May, 2026

    30.7 °F

  • Average May

    53.6 °F

  • Highest 16 May, 2026

    82.9 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    61.6 °F
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