Delavan Lake Weather Forecast

    • 60
    • 69

    Rain Showers

    • 60
    • 73

    Rain Showers

    • 53
    • 66

    Rain Showers Likely

    • 48
    • 60

    Chance Rain Showers

    • 47
    • 60

    Mostly Cloudy

    • 47
    • 63

    Mostly Cloudy

Today 18 Sep Walworth

Mostly cloudy with scattered light Showers. Highs around 70. East Winds 10 to 15 Mph. Chance of Showers 30 percent.

Tonight 18 Sep Walworth

Scattered Showers through around midnight. Chance of Thunderstorms in the late evening and overnight. Showers after midnight. Locally heavy rainfall possible after midnight. Lows in the upper 50s. East Winds 10 to 15 Mph. Chance of precipitation near 100 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Delavan Lake Temperature Statistics

September Temperature

Burlington Municipal Airport (18 miles)

  • Lowest 14 September, 2026

    41.9 °F

  • Average September

    69.9 °F

  • Highest 2 September, 2026

    96.3 °F

Climate (2021–2026)

Burlington Municipal Airport (18 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    39.7 °F

  • Average 2021–2026

    50.1 °F

  • Average High 2021–2026

    59.8 °F
Get WillyWeather+ to remove ads