Williams Bay Weather Forecast

    • 51
    • 63

    Gradual Clearing

    • 52
    • 66

    Partly Sunny

    • 49
    • 65

    Partly Sunny

    • 50
    • 64

    Mostly Cloudy

    • 52
    • 65

    Mostly Cloudy

    • 55
    • 70

    Partly Sunny

Today 23 Sep Walworth

Partly sunny. Highs in the mid 60s. Northeast Winds 5 to 15 Mph.

Tonight 23 Sep Walworth

Partly cloudy until early morning then becoming clear. Lows in the lower 50s. Northeast Winds 5 to 10 Mph.

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Williams Bay Temperature Statistics

September Temperature

Burlington Municipal Airport (13.7 miles)

  • Lowest 14 September, 2026

    41.9 °F

  • Average September

    68.6 °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

    59.8 °F
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