Old School Forest Preserve Weather Forecast

    • 44
    • 54

    Partly Sunny

    • 47
    • 58

    Mostly Cloudy

    • 49
    • 59

    Slight Chance Rain Showers

    • 52
    • 68

    Partly Sunny

    • 55
    • 74

    Partly Sunny

Today 20 May Lake

Mostly cloudy in the Morning, then becoming partly cloudy. Highs in the mid 50s Inland, but only in the lower 50s near the lake. Northeast Winds 10 to 15 Mph.

Tonight 20 May Lake

Partly cloudy. Lows in the lower 40s. Northeast 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

    54.8 °F

  • Highest 17 May, 2026

    84.9 °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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