Octoraro Lake Weather Forecast

    • 66
    • 91

    Mostly Sunny

    • 69
    • 94

    Partly Sunny

    • 55
    • 90

    Rain Showers

    • 50
    • 68

    Chance Rain Showers

    • 51
    • 66

    Rain Showers

    • 56
    • 69

    Rain Showers Likely

Today 18 May Lancaster

Sunny, hot. Near steady temperature in the lower 90s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 18 May Lancaster

Mostly clear. A slight chance of Showers after midnight. Lows in the upper 60s. South Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Octoraro Lake Temperature Statistics

May Temperature

Chester County Airport (14.3 miles)

  • Lowest 1 May, 2026

    36.7 °F

  • Average May

    57.2 °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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