Christiana Weather Forecast

    • 48
    • 64

    Mostly Cloudy

    • 53
    • 71

    Partly Sunny

    • 54
    • 68

    Chance Rain

    • 55
    • 66

    Rain Likely

    • 54
    • 70

    Mostly Cloudy

    • 53
    • 72

    Partly Sunny

    • 58
    • 75

    Partly Sunny

Today 24 Sep Lancaster

Partly sunny. Highs in the upper 70s.

Tonight 24 Sep Lancaster

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the upper 40s. North Winds 5 to 10 Mph.

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Christiana Temperature Statistics

September Temperature

Chester County Airport (6.8 miles)

  • Lowest 15 September, 2026

    50.7 °F

  • Average September

    69.8 °F

  • Highest 1 September, 2026

    87.3 °F

Climate (2021–2026)

Chester County Airport (6.8 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    62.9 °F
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