Grantsburg Weather Forecast

    • 71
    • 84

    Rain Showers

    • 73
    • 87

    Chance Thunderstorms

    • 75
    • 93

    Mostly Sunny

    • 75
    • 96

    Sunny

    • 76
    • 98

    Hot

    • 77
    • 98

    Hot

Today 26 Jun Johnson

Showers likely with a chance of Thunderstorms. Some Thunderstorms may produce heavy rainfall. Highs in the lower 80s. South Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 26 Jun Johnson

Mostly cloudy with a chance of Thunderstorms. A chance of Showers in the Evening, then Showers likely after midnight. Some Thunderstorms may produce heavy rainfall. Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of rain 70 percent.

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Grantsburg Temperature Statistics

June Temperature

Metropolis Municipal Airport (14.3 miles)

  • Lowest 3 June, 2026

    52.5 °F

  • Average June

    74.1 °F

  • Highest 11 June, 2026

    90.3 °F

Climate (2021–2026)

Metropolis Municipal Airport (14.3 miles)

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  • Average Low 2021–2026

    49.2 °F

  • Average 2021–2026

    59.4 °F

  • Average High 2021–2026

    69.8 °F
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