Delavan Lake Weather Forecast

    • 50
    • 70

    Mostly Sunny

    • 54
    • 73

    Mostly Cloudy

    • 56
    • 76

    Partly Sunny

    • 55
    • 78

    Mostly Sunny

    • 61
    • 80

    Partly Sunny

    • 60
    • 83

    Partly Sunny

Today 8 Sep Walworth

Sunny. Highs around 70. South Winds 5 to 10 Mph.

Tonight 8 Sep Walworth

Warmer. Mostly clear. Lows in the lower 50s. South Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Delavan Lake Temperature Statistics

September Temperature

Burlington Municipal Airport (18 miles)

  • Lowest 4 September, 2025

    40.1 °F

  • Average September

    57.7 °F

  • Highest 1 September, 2025

    75.9 °F

Climate (2020–Present)

Burlington Municipal Airport (18 miles)

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

  • Average Low 2020–2025

    39.4 °F

  • Average 2020–2025

    49.8 °F

  • Average High 2020–2025

    59.5 °F
Get WillyWeather+ to remove ads