Lannon Lake Weather Forecast

    • -9
    • 7

    Cold

    • -9
    • 2

    Cold

    • 11
    • 20

    Snow Likely

    • 12
    • 29

    Mostly Cloudy

    • 10
    • 22

    Mostly Cloudy

    • 14
    • 25

    Mostly Cloudy

Today 29 Jan Big Stone

Partly sunny. Highs around 8 above. Northwest Winds around 5 Mph.

Tonight 29 Jan Big Stone

Partly cloudy and cold. Near steady temperature around 5 below. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lannon Lake Temperature Statistics

January Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 22 January, 2026

    -18.4 °F

  • Average January

    13.8 °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

    44.7 °F

  • Average High 2021–2026

    54.5 °F
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