Grantsburg Weather Forecast

    • 57
    • 84

    Mostly Sunny

    • 62
    • 90

    Mostly Sunny

    • 67
    • 91

    Chance Thunderstorms

    • 64
    • 88

    Chance Thunderstorms

    • 57
    • 84

    Chance Thunderstorms

    • 42
    • 72

    Partly Sunny

Today 11 Oct Johnson

Sunny. Highs in the lower 80s. Northwest Winds around 5 Mph.

Tonight 11 Oct Johnson

Mostly clear. Lows in the upper 50s. Calm Winds, becoming southwest around 5 Mph after midnight.

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Grantsburg Temperature Statistics

October Temperature

Metropolis Municipal Airport (14.3 miles)

  • Lowest 6 October, 2026

    44.6 °F

  • Average October

    65.8 °F

  • Highest 1 October, 2026

    92.1 °F

Climate (2021–2026)

Metropolis Municipal Airport (14.3 miles)

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  • Average Low 2021–2026

    49.6 °F

  • Average 2021–2026

    59.9 °F

  • Average High 2021–2026

    70.4 °F
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