Williams Bay Weather Forecast

    • 68
    • 83

    Rain Showers Likely

    • 58
    • 80

    Rain Showers Likely

    • 54
    • 77

    Mostly Sunny

    • 61
    • 80

    Chance Rain Showers

    • 59
    • 81

    Slight Chance Rain Showers

    • 58
    • 77

    Chance Rain Showers

Today 8 Sep Walworth

Partly sunny. Highs in the lower 80s. South Winds up to 10 Mph.

Tonight 8 Sep Walworth

Partly cloudy in the evening then becoming cloudy. Chance of light Showers and slight chance of Thunderstorms through around Midnight, then Showers likely and chance of Thunderstorms after midnight. Lows in the upper 60s. Southwest Winds 5 to 10 Mph. Chance of precipitation 70 percent.

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Williams Bay Temperature Statistics

September Temperature

Burlington Municipal Airport (13.7 miles)

  • Lowest 5 September, 2026

    63.5 °F

  • Average September

    78.9 °F

  • Highest 2 September, 2026

    96.3 °F

Climate (2021–2026)

Burlington Municipal Airport (13.7 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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