Delavan Weather Forecast

    • 68
    • 83

    Rain Showers

    • 61
    • 80

    Chance Thunderstorms

    • 59
    • 79

    Mostly Sunny

    • 61
    • 80

    Mostly Sunny

    • 67
    • 84

    Partly Sunny

    • 69
    • 86

    Slight Chance Thunderstorms

Today 11 Aug Walworth

Mostly cloudy. Patchy fog in the morning. Scattered Showers in the Morning, then scattered Showers and Thunderstorms in the afternoon. Highs in the lower 80s. Southwest Winds up to 10 Mph. Chance of precipitation 40 percent.

Tonight 11 Aug Walworth

Cloudy with scattered Showers and Thunderstorms. Patchy fog. Some Thunderstorms may produce heavy rainfall. Near steady temperature in the upper 60s. Southwest Winds up to 5 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

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Delavan Temperature Statistics

August Temperature

Burlington Municipal Airport (17.4 miles)

  • Lowest 2 August, 2025

    48.6 °F

  • Average August

    68 °F

  • Highest 8 August, 2025

    88.5 °F

Climate (2020–Present)

Burlington Municipal Airport (17.4 miles)

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  • Average Low 2020–2025

    39.4 °F

  • Average 2020–2025

    49.8 °F

  • Average High 2020–2025

    59.5 °F
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