Lannon Lake Weather Forecast

    • 28
    • 38

    Mostly Cloudy

    • 27
    • 42

    Chance Rain

    • 20
    • 37

    Partly Sunny

    • 26
    • 40

    Chance Rain/Snow

    • 26
    • 43

    Slight Chance Snow

    • 27
    • 43

    Partly Sunny

Today 8 Feb Big Stone

Partly sunny. Near steady temperature in the upper 30s. Southeast Winds 5 to 10 Mph.

Tonight 8 Feb Big Stone

Partly cloudy in the Evening, then becoming mostly cloudy. Not as cold with Lows in the upper 20s. South Winds 5 to 10 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

    19.8 °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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