Grantsburg Weather Forecast

    • 67
    • 84

    Rain Showers

    • 54
    • 88

    Chance Rain Showers

    • 41
    • 63

    Partly Sunny

    • 37
    • 63

    Sunny

    • 45
    • 69

    Mostly Sunny

    • 49
    • 71

    Partly Sunny

Today 14 Oct Johnson

Mostly cloudy with a chance of Thunderstorms. Showers. Highs in the lower 80s. South Winds around 5 Mph, becoming west this afternoon. Chance of rain 70 percent.

Tonight 14 Oct Johnson

Mostly cloudy with a chance of Showers and Thunderstorms. Lows in the upper 60s. Calm Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grantsburg Temperature Statistics

October Temperature

Metropolis Municipal Airport (14.3 miles)

  • Lowest 6 October, 2026

    44.6 °F

  • Average October

    66 °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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