Poison Lake Weather Forecast

    • 13
    • 32

    Becoming Sunny

    • 28
    • 34

    Partly Sunny

    • 26
    • 44

    Mostly Cloudy

    • 27
    • 37

    Mostly Cloudy

    • 33
    • 45

    Mostly Cloudy

    • 30
    • 47

    Partly Sunny

Today 20 Dec Moody

Sunny. Highs in the lower 30s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 20 Dec Moody

Mostly cloudy with a chance of Flurries. Not as cool. Near steady temperature in the upper 20s. Temperature rising into the upper 20s through Sunrise. Northwest Winds 15 to 20 Mph.

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Poison Lake Temperature Statistics

December Temperature

Madison Municipal Airport (13 miles)

  • Lowest 3 December, 2025

    -9.4 °F

  • Average December

    17.8 °F

  • Highest 16 December, 2025

    46.4 °F

Climate (2020–Present)

Madison Municipal Airport (13 miles)

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  • Average Low 2020–2025

    37.3 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    57.8 °F
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