Grantsburg Weather Forecast

    • 70
    • 87

    Thunderstorms Likely

    • 73
    • 91

    Rain Showers Likely

    • 72
    • 89

    Rain Showers Likely

    • 70
    • 88

    Rain Showers Likely

    • 69
    • 85

    Chance Thunderstorms

    • 69
    • 88

    Slight Chance Thunderstorms

    • 70
    • 89

    Mostly Sunny

Today 8 Jul Johnson

Showers likely with a chance of Thunderstorms. Highs in the mid 80s. South Winds around 5 Mph. Chance of rain 60 percent.

Tonight 8 Jul Johnson

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Patchy fog after midnight. Lows around 70. Calm Winds. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grantsburg Temperature Statistics

July Temperature

Metropolis Municipal Airport (14.3 miles)

  • Lowest 4 July, 2026

    69.4 °F

  • Average July

    79.2 °F

  • Highest 3 July, 2026

    94.1 °F

Climate (2021–2026)

Metropolis Municipal Airport (14.3 miles)

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  • Average Low 2021–2026

    49.4 °F

  • Average 2021–2026

    59.6 °F

  • Average High 2021–2026

    70 °F
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