Octoraro Lake Weather Forecast

    • 61
    • 68

    Rain Showers

    • 58
    • 80

    Partly Sunny

    • 55
    • 84

    Mostly Sunny

    • 56
    • 76

    Mostly Sunny

    • 58
    • 75

    Partly Sunny

    • 59
    • 77

    Partly Sunny

    • 60
    • 80

    Partly Sunny

Today 17 Sep Lancaster

Showers likely with a chance of Thunderstorms. Near steady temperature in the upper 60s. Northeast Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 17 Sep Lancaster

A slight chance of Thunderstorms this evening. Mostly cloudy with a slight chance of Showers. Lows in the lower 60s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Octoraro Lake Temperature Statistics

September Temperature

Chester County Airport (14.3 miles)

  • Lowest 9 September, 2025

    48.2 °F

  • Average September

    66.7 °F

  • Highest 6 September, 2025

    84.2 °F

Climate (2020–Present)

Chester County Airport (14.3 miles)

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  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    63.1 °F
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