Octoraro Lake Weather Forecast

    • 65
    • 85

    Chance Rain Showers

    • 59
    • 78

    Partly Sunny

    • 65
    • 78

    Rain Showers Likely

    • 64
    • 81

    Slight Chance Thunderstorms

    • 60
    • 79

    Partly Sunny

    • 66
    • 81

    Partly Sunny

Today 10 Sep Lancaster

Mostly cloudy this Morning, then becoming mostly sunny. Very warm with Highs in the mid 80s. West Winds 5 to 10 Mph.

Tonight 10 Sep Lancaster

Partly cloudy in the Evening, then mostly cloudy with isolated Showers after midnight. Humid with Lows in the mid 60s. Northwest Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Real-Time

Octoraro Lake Temperature Statistics

September Temperature

Chester County Airport (14.3 miles)

  • Lowest 8 September, 2026

    54.9 °F

  • Average September

    72.1 °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

    63 °F
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