Chatham Weather Forecast

    • 37
    • 51

    Gradual Clearing

    • 42
    • 57

    Mostly Cloudy

    • 57
    • 65

    Rain Showers Likely

    • 46
    • 69

    Rain Showers

    • 36
    • 56

    Slight Chance Rain Showers

    • 45
    • 62

    Mostly Sunny

Today 13 Mar Eastern Chester

Cloudy. Highs in the lower 50s. East Winds 5 to 10 Mph.

Tonight 13 Mar Eastern Chester

Mostly cloudy. Patchy fog after midnight. Lows in the mid 30s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chatham Temperature Statistics

March Temperature

Chester County Airport (9.3 miles)

  • Lowest 2 March, 2025

    15.8 °F

  • Average March

    41.7 °F

  • Highest 11 March, 2025

    66.2 °F

Climate (2020–Present)

Chester County Airport (9.3 miles)

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  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    63 °F
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