Fontana-on-Geneva Lake Weather Forecast

    • 34
    • 42

    Rain

    • 34
    • 39

    Rain

    • 34
    • 46

    Chance Rain

    • 37
    • 46

    Cloudy

    • 9
    • 43

    Chance Rain/Snow

    • 10
    • 21

    Partly Sunny

    • 14
    • 26

    Mostly Cloudy

Today 24 Dec Walworth

Cloudy with a 50 percent chance of light rain. Southeast Winds around 5 Mph.

Tonight 24 Dec Walworth

Cloudy. Light rain in the Evening, then chance of light rain late in the evening. Lows in the lower 30s. East Winds up to 5 Mph shifting to the north after midnight. Chance of rain 80 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fontana-on-Geneva Lake Temperature Statistics

December Temperature

Burlington Municipal Airport (16.2 miles)

  • Lowest 4 December, 2025

    -1.1 °F

  • Average December

    22.4 °F

  • Highest 18 December, 2025

    47.7 °F

Climate (2020–Present)

Burlington Municipal Airport (16.2 miles)

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  • Average Low 2020–2025

    39.4 °F

  • Average 2020–2025

    49.9 °F

  • Average High 2020–2025

    59.6 °F
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