Fontana-on-Geneva Lake Weather Forecast

    • 66
    • 81

    Rain Showers Likely

    • 70
    • 83

    Rain Showers Likely

    • 61
    • 82

    Slight Chance Thunderstorms

    • 60
    • 79

    Partly Sunny

    • 64
    • 80

    Rain Showers Likely

    • 58
    • 77

    Slight Chance Thunderstorms

    • 57
    • 74

    Partly Sunny

Today 14 Aug Walworth

Partly sunny. East Winds 5 to 10 Mph.

Tonight 14 Aug Walworth

Cloudy. Showers likely and chance of Thunderstorms. Lows in the mid 60s. East Winds up to 10 Mph. Chance of precipitation 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fontana-on-Geneva Lake Temperature Statistics

August Temperature

Burlington Municipal Airport (16.2 miles)

  • Lowest 3 August, 2026

    54.7 °F

  • Average August

    71.1 °F

  • Highest 10 August, 2026

    85.1 °F

Climate (2021–2026)

Burlington Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    59.9 °F
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