Chatham Weather Forecast

    • 52
    • 79

    Chance Thunderstorms

    • 37
    • 68

    Rain Showers

    • 38
    • 55

    Mostly Sunny

    • 27
    • 50

    Mostly Sunny

    • 33
    • 52

    Mostly Sunny

    • 42
    • 62

    Mostly Sunny

Today 4 Apr Eastern Chester

Partly sunny with a chance of Showers and Thunderstorms. Highs in the upper 70s. Temperature falling into the mid 70s late. Southeast Winds 10 to 15 Mph. Chance of rain 40 percent.

Tonight 4 Apr Eastern Chester

A slight chance of Thunderstorms this evening. Mostly cloudy with a chance of Showers. Lows in the lower 50s. East Winds 10 to 15 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chatham Temperature Statistics

April Temperature

Chester County Airport (9.3 miles)

  • Lowest 2 April, 2026

    40.6 °F

  • Average April

    57.7 °F

  • Highest 1 April, 2026

    77.4 °F

Climate (2021–Present)

Chester County Airport (9.3 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    63 °F
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