Fontana-on-Geneva Lake Weather Forecast

    • -3
    • 11

    Mostly Sunny

    • -5
    • 13

    Mostly Sunny

    • -3
    • 10

    Cold

    • 2
    • 12

    Slight Chance Snow Showers

    • 3
    • 19

    Partly Sunny

    • 12
    • 22

    Chance Snow

    • 9
    • 24

    Mostly Cloudy

Today 27 Jan Walworth

Sunny. Northwest Winds 10 to 20 Mph.

Tonight 27 Jan Walworth

Mostly clear. Lows around 3 below. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fontana-on-Geneva Lake Temperature Statistics

January Temperature

Burlington Municipal Airport (16.2 miles)

  • Lowest 19 January, 2026

    0.7 °F

  • Average January

    26 °F

  • Highest 8 January, 2026

    57.7 °F

Climate (2021–Present)

Burlington Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    59.8 °F
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