Grantsburg Weather Forecast

    • 33
    • 50

    Mostly Sunny

    • 41
    • 58

    Chance Rain Showers

    • 19
    • 46

    Chance Rain Showers

    • 22
    • 33

    Partly Sunny

    • 23
    • 44

    Mostly Cloudy

    • 13
    • 36

    Partly Sunny

Today 12 Jan Johnson

Sunny. Highs around 50. Southwest Winds 5 to 10 Mph.

Tonight 12 Jan Johnson

Mostly clear. Lows in the lower 30s. Southwest Winds 5 to 10 Mph.

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Grantsburg Temperature Statistics

January Temperature

Metropolis Municipal Airport (14.3 miles)

  • Lowest 4 January, 2026

    22.6 °F

  • Average January

    44.5 °F

  • Highest 8 January, 2026

    68.9 °F

Climate (2021–Present)

Metropolis Municipal Airport (14.3 miles)

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  • Average Low 2021–2026

    48.8 °F

  • Average 2021–2026

    59 °F

  • Average High 2021–2026

    69.4 °F
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