Williams Bay Weather Forecast

    • 54
    • 66

    Rain Showers Likely

    • 50
    • 62

    Chance Rain Showers

    • 48
    • 61

    Mostly Cloudy

    • 48
    • 63

    Partly Sunny

    • 49
    • 64

    Mostly Cloudy

    • 50
    • 67

    Partly Sunny

Today 20 Sep Walworth

Mostly cloudy. Patchy fog in the morning. Light Showers likely and slight chance of Thunderstorms in the Morning, then chance of light Showers late in the morning. Near steady temperature in the lower 60s. Northeast Winds 10 to 15 Mph with Gusts to around 30 Mph. Chance of precipitation 70 percent.

Tonight 20 Sep Walworth

Mostly cloudy. Lows in the mid 50s. Northeast Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Williams Bay Temperature Statistics

September Temperature

Burlington Municipal Airport (13.7 miles)

  • Lowest 14 September, 2026

    41.9 °F

  • Average September

    69.6 °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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