Octoraro Lake Weather Forecast

    • 50
    • 71

    Rain Showers

    • 47
    • 64

    Partly Sunny

    • 51
    • 69

    Partly Sunny

    • 58
    • 79

    Partly Sunny

    • 61
    • 86

    Mostly Sunny

    • 63
    • 88

    Partly Sunny

Today 13 May Lancaster

Partly sunny this Morning, then mostly cloudy with a chance of Showers and Thunderstorms this afternoon. Some Thunderstorms may produce gusty Winds this afternoon. Highs in the lower 70s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 13 May Lancaster

Showers with a chance of Thunderstorms in the Evening, then Showers with a slight chance of Thunderstorms after midnight. Some Thunderstorms may produce gusty Winds in the evening. Lows around 50. South Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming west 5 to 10 Mph after midnight. Chance of rain near 100 percent.

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Octoraro Lake Temperature Statistics

May Temperature

Chester County Airport (14.3 miles)

  • Lowest 1 May, 2026

    36.7 °F

  • Average May

    56.6 °F

  • Highest 5 May, 2026

    78.4 °F

Climate (2021–Present)

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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