Fontana-on-Geneva Lake Weather Forecast

    • 16
    • 48

    Rain

    • 9
    • 20

    Chance Snow

    • 20
    • 27

    Mostly Cloudy

    • 7
    • 27

    Chance Snow

    • 7
    • 16

    Mostly Sunny

    • 13
    • 24

    Partly Sunny

    • 11
    • 27

    Mostly Cloudy

Today 28 Dec Walworth

Rain. Areas of fog. Highs in the upper 40s. Northeast Winds 5 to 10 Mph with Gusts to around 25 Mph. Chance of rain near 100 percent.

Tonight 28 Dec Walworth

Much Colder. Windy. Light rain Likely, possibly mixed with snow in the Evening, then light snow in the late evening and overnight. Areas of blowing snow in the late evening and overnight. Snow accumulation of 1 to 2 Inches. Lows around 17. West Winds 20 to 30 Mph with Gusts to around 45 Mph. Chance of precipitation 90 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

    24.9 °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

    39.5 °F

  • Average 2020–2025

    49.9 °F

  • Average High 2020–2025

    59.6 °F
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