Lannon Lake Weather Forecast

    • 18
    • 26

    Increasing Clouds

    • 9
    • 28

    Slight Chance Snow

    • -12
    • 15

    Chance Snow

    • -4
    • 4

    Cold

    • 14
    • 27

    Slight Chance Snow

    • 16
    • 32

    Chance Snow

Today 4 Dec Big Stone

Partly sunny in the Morning, then becoming mostly cloudy. Not as cold with Highs in the mid 20s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Wind chill Values as low as 22 below in the morning.

Tonight 4 Dec Big Stone

Mostly clear. Much Colder with Lows around 13 below. Southwest Winds around 5 Mph. Wind chill Values as low as 24 below.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lannon Lake Temperature Statistics

December Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 1 December, 2025

    -0.4 °F

  • Average December

    9.3 °F

  • Highest 1 December, 2025

    17.6 °F

Climate (2020–Present)

Wheaton Municipal Airport (16.8 miles)

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  • Average Low 2020–2025

    35.1 °F

  • Average 2020–2025

    45 °F

  • Average High 2020–2025

    54.7 °F
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