Lake Geneva Weather Forecast

    • 13
    • 18

    Mostly Cloudy

    • 27
    • 33

    Mostly Cloudy

    • 27
    • 38

    Mostly Cloudy

    • 16
    • 45

    Rain/Snow

    • 17
    • 24

    Slight Chance Snow Showers

    • 23
    • 38

    Slight Chance Rain/Snow

Today 15 Dec Clinton

Mostly cloudy. A 20 percent chance of snow Showers in the morning. Highs 15 to 20. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

Tonight 15 Dec Clinton

Cloudy. Lows 10 to 15. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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Lake Geneva Temperature Statistics

December Temperature

Capital Region International Airport (3.7 miles)

  • Lowest 8 December, 2025

    -0.9 °F

  • Average December

    22.4 °F

  • Highest 10 December, 2025

    35.1 °F

Climate (2020–Present)

Capital Region International Airport (3.7 miles)

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  • Average Low 2020–2025

    42 °F

  • Average 2020–2025

    51 °F

  • Average High 2020–2025

    60.1 °F
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