Lannon Lake Weather Forecast

    • 22
    • 41

    Mostly Cloudy

    • 9
    • 31

    Partly Sunny

    • 20
    • 33

    Mostly Cloudy

    • 27
    • 42

    Partly Sunny

    • 27
    • 44

    Mostly Cloudy

    • 20
    • 37

    Mostly Cloudy

Today 5 Feb Big Stone

Partly sunny. Not as cold with Highs around 40. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 5 Feb Big Stone

Mostly cloudy. Near steady temperature in the upper 20s. Temperature rising to around 30 through Sunrise. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lannon Lake Temperature Statistics

February Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 2 February, 2026

    -0.4 °F

  • Average February

    15.4 °F

  • Highest 1 February, 2026

    33.8 °F

Climate (2021–Present)

Wheaton Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    34.8 °F

  • Average 2021–2026

    44.7 °F

  • Average High 2021–2026

    54.5 °F
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