Lannon Lake Weather Forecast

    • 30
    • 58

    Becoming Sunny

    • 34
    • 48

    Partly Sunny

    • 34
    • 49

    Rain/Snow Likely

    • 23
    • 42

    Chance Rain/Snow

    • 13
    • 28

    Chance Snow

    • 9
    • 23

    Mostly Cloudy

    • 5
    • 24

    Partly Sunny

Today 15 Feb Big Stone

Partly sunny. Near steady temperature in the upper 50s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 15 Feb Big Stone

Partly cloudy. Lows around 30. Southwest Winds 5 to 10 Mph, becoming northwest after midnight.

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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

    26.1 °F

  • Highest 13 February, 2026

    50 °F

Climate (2021–Present)

Wheaton Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    35 °F

  • Average 2021–2026

    44.9 °F

  • Average High 2021–2026

    54.7 °F
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