Grantsburg Weather Forecast

    • 11
    • 24

    Becoming Sunny

    • 26
    • 37

    Mostly Sunny

    • 27
    • 46

    Slight Chance Rain Showers

    • 22
    • 39

    Partly Sunny

    • 8
    • 33

    Chance Snow Showers

    • 9
    • 19

    Chance Snow Showers

Today 19 Jan Johnson

Mostly sunny. Near steady temperature in the lower 20s. Northwest Winds 10 to 15 Mph.

Tonight 19 Jan Johnson

Clear, cold with Lows around 12. Northwest Winds around 5 Mph in the Evening, becoming light and variable.

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Grantsburg Temperature Statistics

January Temperature

Metropolis Municipal Airport (14.3 miles)

  • Lowest 12 January, 2026

    21.2 °F

  • Average January

    43.5 °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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