Lannon Lake Weather Forecast

    • 28
    • 46

    Increasing Clouds

    • 27
    • 49

    Mostly Sunny

    • 32
    • 50

    Partly Sunny

    • 29
    • 53

    Partly Sunny

    • 32
    • 50

    Mostly Cloudy

    • 34
    • 53

    Partly Sunny

Today 11 Feb Big Stone

Mostly sunny. Highs in the upper 40s. South Winds around 5 Mph, becoming southwest around 5 Mph this afternoon.

Tonight 11 Feb Big Stone

Mostly cloudy. Lows in the upper 20s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lannon Lake Temperature Statistics

February Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 3 February, 2026

    -9.4 °F

  • Average February

    21.1 °F

  • Highest 5 February, 2026

    44.6 °F

Climate (2021–Present)

Wheaton Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    34.9 °F

  • Average 2021–2026

    44.8 °F

  • Average High 2021–2026

    54.6 °F
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