Goose Lake Prairie State Park Weather Forecast

    • 73
    • 93

    Becoming Sunny

    • 74
    • 94

    Mostly Sunny

    • 76
    • 92

    Thunderstorms

    • 73
    • 90

    Chance Thunderstorms

    • 71
    • 90

    Chance Rain Showers

    • 66
    • 87

    Partly Sunny

Today 1 Sep Grundy

Partly cloudy. Temperatures in the lower 90s. Southwest Winds around 10 Mph. Heat index Values up to 105.

Tonight 1 Sep Grundy

Clear, humid. Lows in the mid 70s. Southwest Winds around 5 Mph. Heat index Values up to 101 early in the evening.

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Goose Lake Prairie State Park Temperature Statistics

September Temperature

Joliet Regional Airport (13.7 miles)

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  • Average September

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Climate (2021–2026)

Joliet Regional Airport (13.7 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    63.3 °F
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