Lannon Lake Weather Forecast

    • 28
    • 37

    Mostly Cloudy

    • 27
    • 41

    Mostly Cloudy

    • 21
    • 38

    Partly Sunny

    • 22
    • 37

    Mostly Cloudy

    • 23
    • 37

    Slight Chance Snow

    • 25
    • 40

    Partly Sunny

Today 8 Feb Big Stone

Partly sunny. Highs in the upper 30s. Southeast Winds around 5 Mph.

Tonight 8 Feb Big Stone

Partly cloudy and not as cold. Near steady temperature in the lower 20s. Southeast 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 3 February, 2026

    -9.4 °F

  • Average February

    19 °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

    34.8 °F

  • Average 2021–2026

    44.7 °F

  • Average High 2021–2026

    54.5 °F
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