Chester Weather Forecast

    • 60
    • 68

    Mostly Cloudy

    • 59
    • 75

    Partly Sunny

    • 63
    • 79

    Partly Sunny

    • 67
    • 82

    Partly Sunny

    • 64
    • 84

    Slight Chance Rain Showers

    • 61
    • 72

    Chance Rain Showers

    • 57
    • 70

    Chance Rain Showers

Today 28 Sep Delaware

Partly sunny. Highs in the upper 60s.

Tonight 28 Sep Delaware

Mostly cloudy. Lows in the upper 50s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chester Temperature Statistics

September Temperature

Philadelphia, Philadelphia International Airport (6.8 miles)

  • Lowest 24 September, 2026

    54.6 °F

  • Average September

    73.8 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Philadelphia, Philadelphia International Airport (6.8 miles)

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  • Average Low 2021–2026

    50.3 °F

  • Average 2021–2026

    58.6 °F

  • Average High 2021–2026

    67.2 °F
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