Old School Forest Preserve Weather Forecast

    • 49
    • 70

    Partly Sunny

    • 54
    • 70

    Partly Sunny

    • 60
    • 73

    Chance Rain Showers

    • 61
    • 72

    Rain Showers Likely

    • 56
    • 71

    Chance Rain Showers

    • 54
    • 65

    Chance Rain Showers

Today 27 Sep Lake

Partly cloudy. Highs around 70. Northeast Winds around 5 Mph.

Tonight 27 Sep Lake

Partly cloudy. Patchy fog after midnight. Lows in the upper 40s. North Winds around 5 Mph.

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  • Temperature Real-Time

Old School Forest Preserve Temperature Statistics

September Temperature

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

  • Lowest 14 September, 2026

    50.6 °F

  • Average September

    70.6 °F

  • Highest 2 September, 2026

    96.7 °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

    61.5 °F
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