Fontana-on-Geneva Lake Weather Forecast

    • 59
    • 83

    Chance Thunderstorms

    • 67
    • 81

    Chance Rain Showers

    • 64
    • 81

    Rain Showers

    • 47
    • 79

    Rain Showers Likely

    • 41
    • 61

    Partly Sunny

    • 43
    • 61

    Partly Sunny

    • 47
    • 66

    Partly Sunny

Today 16 May Walworth

Sunny. West Winds up to 5 Mph.

Tonight 16 May Walworth

Partly cloudy in the evening then becoming mostly cloudy. A 50 percent chance of rain Showers and Thunderstorms in the late evening and overnight. Lows in the upper 50s. Southwest Winds up to 10 Mph shifting to the southeast after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fontana-on-Geneva Lake Temperature Statistics

May Temperature

Burlington Municipal Airport (16.2 miles)

  • Lowest 2 May, 2026

    28 °F

  • Average May

    51 °F

  • Highest 4 May, 2026

    79.3 °F

Climate (2021–Present)

Burlington Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    39.6 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    59.9 °F
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