Grantsburg Weather Forecast

    • 68
    • 86

    Rain Showers

    • 68
    • 83

    Chance Thunderstorms

    • 69
    • 85

    Slight Chance Thunderstorms

    • 70
    • 87

    Chance Thunderstorms

    • 71
    • 88

    Slight Chance Thunderstorms

    • 73
    • 89

    Slight Chance Thunderstorms

    • 73
    • 92

    Mostly Sunny

Today 11 Jul Johnson

Showers with Thunderstorms likely. Some Thunderstorms may produce heavy rainfall. Near steady temperature in the lower 80s. West Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 11 Jul Johnson

Mostly cloudy. Showers and Thunderstorms likely in the Evening, then a slight chance of Showers after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Lows in the upper 60s. North Winds around 5 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grantsburg Temperature Statistics

July Temperature

Metropolis Municipal Airport (14.3 miles)

  • Lowest 9 July, 2026

    67.1 °F

  • Average July

    77.7 °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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