Lannon Lake Weather Forecast

    • 43
    • 57

    Chance Rain Showers

    • 50
    • 56

    Chance Rain Showers

    • 51
    • 62

    Mostly Cloudy

    • 48
    • 58

    Rain

    • 40
    • 54

    Chance Rain

    • 37
    • 51

    Mostly Cloudy

    • 33
    • 47

    Partly Sunny

Today 30 Oct Big Stone

Partly cloudy. Lows in the lower 30s. Highs in the upper 40s.

Tonight 30 Oct Big Stone

Mostly cloudy. A chance of Showers after midnight. Lows in the lower 40s. Southeast Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lannon Lake Temperature Statistics

October Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 19 October, 2026

    30.2 °F

  • Average October

    52.9 °F

  • Highest 10 October, 2026

    93.2 °F

Climate (2021–2026)

Wheaton Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    34.8 °F

  • Average 2021–2026

    44.6 °F

  • Average High 2021–2026

    54.5 °F
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