Lannon Lake Weather Forecast

    • -21
    • 5

    Blustery

    • -17
    • -10

    Cold

    • -13
    • 1

    Cold

    • -15
    • -2

    Cold

    • 0
    • 13

    Partly Sunny

    • -2
    • 16

    Partly Sunny

Today 22 Jan Big Stone

Mostly cloudy. Patchy blowing snow in the afternoon. Brisk and much Colder with Highs around 7 above. Temperature falling to around 6 below in the afternoon. Northwest Winds 20 to 25 Mph with Gusts up to 35 Mph. Wind chill Values as low as 34 below.

Tonight 22 Jan Big Stone

Mostly cloudy with isolated snow Showers. Cold with Lows around 1 below. Northwest Winds 10 to 15 Mph. Chance of snow 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lannon Lake Temperature Statistics

January Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 19 January, 2026

    -7.6 °F

  • Average January

    19.5 °F

  • Highest 12 January, 2026

    44.6 °F

Climate (2021–Present)

Wheaton Municipal Airport (16.8 miles)

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  • Average Low 2021–2026

    34.9 °F

  • Average 2021–2026

    44.8 °F

  • Average High 2021–2026

    54.6 °F
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