Lannon Lake Weather Forecast

    • 36
    • 58

    Becoming Sunny

    • 40
    • 68

    Partly Sunny

    • 27
    • 48

    Mostly Sunny

    • 25
    • 44

    Mostly Sunny

    • 24
    • 40

    Chance Rain

    • 24
    • 38

    Mostly Cloudy

Today 13 Nov Big Stone

Partly sunny in the Morning, then clearing. Highs in the mid 50s. Southeast Winds around 5 Mph.

Tonight 13 Nov Big Stone

Partly cloudy. Near steady temperature in the lower 30s. South Winds around 5 Mph.

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Lannon Lake Temperature Statistics

November Temperature

Wheaton Municipal Airport (16.8 miles)

  • Lowest 7 November, 2025

    23 °F

  • Average November

    38.3 °F

  • Highest 4 November, 2025

    62.6 °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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