Old School Forest Preserve Weather Forecast

    • 61
    • 82

    Mostly Sunny

    • 65
    • 83

    Partly Sunny

    • 58
    • 75

    Partly Sunny

    • 55
    • 70

    Partly Sunny

    • 55
    • 73

    Partly Sunny

    • 55
    • 69

    Partly Sunny

Today 25 May Lake

Mostly sunny late in the Morning, then becoming partly cloudy. Highs in the lower 80s Inland, but only in the mid 70s near the lake. South Winds 5 to 10 Mph.

Tonight 25 May Lake

Clear. Lows in the lower 60s. South Winds 5 to 10 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

    56.3 °F

  • Highest 17 May, 2026

    85.6 °F

Climate (2021–Present)

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

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    61.6 °F
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