Marsh Creek Reservoir Weather Forecast

    • 49
    • 61

    Rain Showers

    • 49
    • 63

    Slight Chance Rain Showers

    • 48
    • 63

    Mostly Cloudy

    • 50
    • 65

    Slight Chance Rain Showers

    • 50
    • 65

    Slight Chance Rain Showers

    • 51
    • 68

    Partly Sunny

Today 22 Sep Western Chester

Cloudy. Showers, mainly in the morning. Highs in the lower 60s. Northeast Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 90 percent.

Tonight 22 Sep Western Chester

Mostly cloudy with a 50 percent chance of Showers. Lows around 50. Northeast Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marsh Creek Reservoir Temperature Statistics

September Temperature

Chester County Airport (9.3 miles)

  • Lowest 15 September, 2026

    50.7 °F

  • Average September

    70.8 °F

  • Highest 1 September, 2026

    87.3 °F

Climate (2021–2026)

Chester County Airport (9.3 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    63 °F
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