Dayton Weather Forecast

    • 74
    • 91

    Slight Chance Thunderstorms

    • 76
    • 96

    Chance Thunderstorms

    • 70
    • 95

    Mostly Sunny

    • 67
    • 90

    Partly Sunny

    • 67
    • 90

    Partly Sunny

    • 67
    • 89

    Chance Thunderstorms

    • 65
    • 87

    Slight Chance Thunderstorms

Today 25 Jul Webster

Mostly sunny. Warmer with Highs in the lower 90s. South Winds 5 to 10 Mph. Heat index Values up to 107.

Tonight 25 Jul Webster

Partly cloudy this Evening, then mostly cloudy with a slight chance of Showers and Thunderstorms after midnight. Humid with Lows in the mid 70s. South Winds around 5 Mph. Chance of rain 20 percent. Heat index Values up to 106 early this evening.

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Dayton Temperature Statistics

July Temperature

Webster City Municipal Airport (15.5 miles)

  • Lowest 12 July, 2026

    59 °F

  • Average July

    75.9 °F

  • Highest 20 July, 2026

    93.2 °F

Climate (2021–2026)

Webster City Municipal Airport (15.5 miles)

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  • Average Low 2021–2026

    37.6 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    59.3 °F
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