Octoraro Lake Weather Forecast

    • 48
    • 64

    Mostly Cloudy

    • 52
    • 69

    Partly Sunny

    • 52
    • 69

    Chance Rain Showers

    • 52
    • 66

    Slight Chance Rain Showers

    • 52
    • 68

    Mostly Cloudy

    • 53
    • 71

    Partly Sunny

Today 24 Sep Lancaster

Mostly sunny. Highs in the mid 60s. Northeast Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 24 Sep Lancaster

Mostly cloudy. Lows in the upper 40s. North Winds 5 to 10 Mph.

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Octoraro Lake Temperature Statistics

September Temperature

Chester County Airport (14.3 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 (14.3 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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