Grantsburg Weather Forecast

    • 74
    • 97

    Hot

    • 73
    • 98

    Hot

    • 74
    • 98

    Hot

    • 74
    • 98

    Hot

    • 72
    • 98

    Slight Chance Thunderstorms

    • 69
    • 96

    Mostly Sunny

Today 1 Sep Johnson

Sunny, hot with Highs in the mid 90s. Southwest Winds around 5 Mph.

Tonight 1 Sep Johnson

Clear. Lows in the mid 70s. South Winds around 5 Mph in the Evening, becoming light and variable.

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Grantsburg Temperature Statistics

September Temperature

Metropolis Municipal Airport (14.3 miles)

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  • Average September

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Climate (2021–2026)

Metropolis Municipal Airport (14.3 miles)

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  • Average Low 2021–2026

    49.5 °F

  • Average 2021–2026

    59.7 °F

  • Average High 2021–2026

    70.2 °F
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