Old School Forest Preserve Weather Forecast

    • 41
    • 62

    Sunny

    • 44
    • 66

    Increasing Clouds

    • 47
    • 65

    Mostly Sunny

    • 49
    • 69

    Mostly Sunny

    • 52
    • 69

    Mostly Sunny

    • 50
    • 67

    Partly Sunny

    • 52
    • 68

    Mostly Cloudy

Today 18 Oct Lake

Mostly cloudy. Highs in the upper 60s.

Tonight 18 Oct Lake

Clear. Lows in the lower 40s. Southwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Old School Forest Preserve Temperature Statistics

October Temperature

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

  • Lowest 16 October, 2026

    43 °F

  • Average October

    62.8 °F

  • Highest 12 October, 2026

    88.6 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    52.8 °F

  • Average High 2021–2026

    61.5 °F
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