Lannon Lake Weather Forecast

    • 60
    • 83

    Partly Sunny

    • 57
    • 78

    Chance Rain Showers

    • 59
    • 80

    Rain Showers Likely

    • 54
    • 77

    Chance Rain Showers

    • 55
    • 75

    Partly Sunny

    • 59
    • 79

    Chance Rain Showers

Today 15 Aug Big Stone

Partly sunny with a 20 percent chance of Thunderstorms. Near steady temperature in the lower 80s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 15 Aug Big Stone

Partly cloudy. Lows around 60. Northwest Winds 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lannon Lake Temperature Statistics

August Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 8 August, 2026

    50 °F

  • Average August

    69.4 °F

  • Highest 3 August, 2026

    84.2 °F

Climate (2021–2026)

Wheaton Municipal Airport (16.8 miles)

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

  • Average Low 2021–2026

    34.8 °F

  • Average 2021–2026

    44.6 °F

  • Average High 2021–2026

    54.5 °F
Get WillyWeather+ to remove ads