Lannon Lake Weather Forecast

    • -2
    • 4

    Chance Snow

    • -9
    • 16

    Slight Chance Snow

    • -4
    • 7

    Cold

    • 7
    • 20

    Chance Snow

    • 0
    • 17

    Mostly Cloudy

    • -5
    • 13

    Mostly Cloudy

Today 17 Jan Big Stone

Partly sunny and brisk. Much Colder. Near steady temperature around 1 above. Northwest Winds 20 to 25 Mph. Wind chill Values as low as 25 below.

Tonight 17 Jan Big Stone

Mostly cloudy. Snow Showers likely after midnight. Snow accumulation around an inch. Cold with Lows around 1 below. Temperature rising to around 8 above after midnight. Southwest Winds 5 to 10 Mph, becoming south 10 to 15 Mph after midnight. Chance of snow 70 percent.

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  • Temperature Real-Time

Lannon Lake Temperature Statistics

January Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 1 January, 2026

    -2.2 °F

  • Average January

    23.5 °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

    35 °F

  • Average 2021–2026

    44.8 °F

  • Average High 2021–2026

    54.6 °F
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