Grantsburg Weather Forecast

    • 65
    • 83

    Rain Showers Likely

    • 41
    • 71

    Rain Showers

    • 39
    • 61

    Sunny

    • 41
    • 67

    Mostly Sunny

    • 40
    • 60

    Partly Sunny

    • 52
    • 73

    Partly Sunny

    • 55
    • 75

    Partly Sunny

Today 3 Apr Johnson

Partly sunny with a chance of Showers and Thunderstorms. Near steady temperature in the lower 80s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 3 Apr Johnson

Partly cloudy with a slight chance of Showers and Thunderstorms this Evening, then mostly cloudy with Showers likely with a chance of Thunderstorms after midnight. Lows in the mid 60s. South Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 60 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Grantsburg Temperature Statistics

April Temperature

Metropolis Municipal Airport (14.3 miles)

  • Lowest 1 April, 2026

    66.6 °F

  • Average April

    74.1 °F

  • Highest 1 April, 2026

    82.9 °F

Climate (2021–Present)

Metropolis Municipal Airport (14.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    48.8 °F

  • Average 2021–2026

    59 °F

  • Average High 2021–2026

    69.4 °F
Get WillyWeather+ to remove ads