Lannon Lake Weather Forecast

    • 55
    • 71

    Becoming Sunny

    • 49
    • 78

    Mostly Sunny

    • 48
    • 71

    Partly Sunny

    • 44
    • 67

    Partly Sunny

    • 52
    • 68

    Partly Sunny

    • 55
    • 75

    Partly Sunny

Today 5 Oct Big Stone

Partly sunny. Highs in the lower 70s. Southeast Winds 15 to 20 Mph.

Tonight 5 Oct Big Stone

Mostly clear. Not as cool with Lows in the mid 50s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lannon Lake Temperature Statistics

October Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 2 October, 2026

    33.8 °F

  • Average October

    53.8 °F

  • Highest 3 October, 2026

    66.2 °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

    54.4 °F
Get WillyWeather+ to remove ads