Alum Creek Lake Weather Forecast

    • 70
    • 92

    Chance Rain Showers

    • 69
    • 89

    Chance Thunderstorms

    • 59
    • 83

    Chance Thunderstorms

    • 59
    • 81

    Mostly Sunny

    • 62
    • 82

    Partly Sunny

    • 66
    • 84

    Partly Sunny

Today 3 Sep Delaware

Mostly sunny with a chance of Showers with a slight chance of Thunderstorms. Hot with Highs in the lower 90s. West Winds around 10 Mph. Chance of rain 30 percent. Heat index Values up to 102.

Tonight 3 Sep Delaware

Partly cloudy with a chance of Showers with a slight chance of Thunderstorms in the Evening, then mostly clear after midnight. Muggy and Unseasonably warm. Lows around 70. West Winds 5 to 10 Mph, becoming south after midnight. Chance of rain 40 percent.

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Alum Creek Lake Temperature Statistics

September Temperature

Delaware Municipal Airport (8.1 miles)

  • Lowest 1 September, 2026

    75.2 °F

  • Average September

    79.9 °F

  • Highest 1 September, 2026

    89.6 °F

Climate (2021–2026)

Delaware Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    61.9 °F
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