Poison Lake Weather Forecast

    • 62
    • 87

    Chance Thunderstorms

    • 60
    • 76

    Rain Showers

    • 59
    • 73

    Rain Showers Likely

    • 55
    • 70

    Rain Showers Likely

    • 56
    • 73

    Partly Sunny

    • 57
    • 77

    Slight Chance Thunderstorms

Today 16 Sep Moody

Sunny. Highs in the upper 80s. South Winds around 10 Mph.

Tonight 16 Sep Moody

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers with a slight chance of Thunderstorms. Lows in the lower 60s. Southwest Winds 5 to 10 Mph, becoming north after midnight. Chance of rain 40 percent.

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  • Temperature Real-Time

Poison Lake Temperature Statistics

September Temperature

Madison Municipal Airport (13 miles)

  • Lowest 7 September, 2025

    35.6 °F

  • Average September

    62.5 °F

  • Highest 13 September, 2025

    87.8 °F

Climate (2020–Present)

Madison Municipal Airport (13 miles)

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  • Average Low 2020–2025

    37.1 °F

  • Average 2020–2025

    47.3 °F

  • Average High 2020–2025

    57.6 °F
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