Lannon Lake Weather Forecast

    • 50
    • 76

    Blowing Dust

    • 49
    • 80

    Chance Rain Showers

    • 45
    • 79

    Blowing Dust

    • 48
    • 77

    Chance Rain Showers

    • 46
    • 73

    Rain Showers Likely

    • 41
    • 65

    Chance Rain Showers

Today 13 May Big Stone

Sunny. Highs in the mid 70s. West Winds around 5 Mph.

Tonight 13 May Big Stone

Mostly clear in the Evening, then becoming partly cloudy. Breezy with Lows around 50. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph, increasing to 15 to 25 Mph with Gusts up to 35 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lannon Lake Temperature Statistics

May Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 6 May, 2026

    28.4 °F

  • Average May

    49.5 °F

  • Highest 11 May, 2026

    71.6 °F

Climate (2021–Present)

Wheaton Municipal Airport (16.8 miles)

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

  • Average Low 2021–2026

    34.7 °F

  • Average 2021–2026

    44.6 °F

  • Average High 2021–2026

    54.5 °F
Get WillyWeather+ to remove ads