Downingtown Weather Forecast

    • 71
    • 92

    Slight Chance Thunderstorms

    • 66
    • 83

    Partly Sunny

    • 70
    • 84

    Chance Thunderstorms

    • 66
    • 85

    Chance Thunderstorms

    • 63
    • 83

    Partly Sunny

    • 65
    • 83

    Slight Chance Thunderstorms

Today 17 Jul Eastern Chester

Mostly sunny with a slight chance of Showers. A slight chance of Thunderstorms this afternoon. Hot with Highs in the lower 90s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

Tonight 17 Jul Eastern Chester

Mostly clear with a slight chance of Showers and Thunderstorms in the Evening, then partly cloudy after midnight. Humid with Lows in the lower 70s. West Winds 5 to 10 Mph. Chance of rain 20 percent.

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Downingtown Temperature Statistics

July Temperature

Chester County Airport (8.7 miles)

  • Lowest 5 July, 2025

    59 °F

  • Average July

    75.7 °F

  • Highest 8 July, 2025

    89.6 °F

Climate (2020–Present)

Chester County Airport (8.7 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    54.7 °F

  • Average High 2020–2025

    63.1 °F
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