Old School Forest Preserve Weather Forecast

    • 73
    • 92

    Mostly Sunny

    • 74
    • 95

    Mostly Sunny

    • 71
    • 93

    Mostly Sunny

    • 72
    • 91

    Partly Sunny

    • 70
    • 90

    Slight Chance Thunderstorms

    • 68
    • 89

    Slight Chance Thunderstorms

Today 13 Jul Lake

Sunny. Highs in the lower 90s Inland, but only in the upper 80s near the lake. West Winds 5 to 10 Mph.

Tonight 13 Jul Lake

Clear. Lows in the lower 70s. West Winds around 5 Mph.

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Old School Forest Preserve Temperature Statistics

July Temperature

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

  • Lowest 7 July, 2026

    62.7 °F

  • Average July

    77.2 °F

  • Highest 1 July, 2026

    95.6 °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

    61.6 °F
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