Grantsburg Weather Forecast

    • 53
    • 76

    Becoming Sunny

    • 54
    • 77

    Mostly Sunny

    • 58
    • 80

    Slight Chance Thunderstorms

    • 60
    • 82

    Partly Sunny

    • 66
    • 83

    Chance Rain Showers

    • 67
    • 80

    Chance Rain Showers

    • 63
    • 82

    Chance Thunderstorms

Today 8 Apr Johnson

Sunny. Near steady temperature in the mid 70s. South Winds 5 to 10 Mph.

Tonight 8 Apr Johnson

Partly cloudy this Evening, then becoming clear. Lows in the lower 50s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grantsburg Temperature Statistics

April Temperature

Metropolis Municipal Airport (14.3 miles)

  • Lowest 6 April, 2026

    35.1 °F

  • Average April

    64.6 °F

  • Highest 1 April, 2026

    82.9 °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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