Octoraro Lake Weather Forecast

    • 50
    • 66

    Rain Showers Likely

    • 47
    • 77

    Rain Showers

    • 41
    • 61

    Chance Rain Showers

    • 45
    • 62

    Partly Sunny

    • 48
    • 64

    Rain Showers

    • 48
    • 65

    Rain Showers Likely

Today 9 May Lancaster

A chance of rain this Morning, then rain likely with isolated Thunderstorms this afternoon. Highs in the upper 60s. Southwest Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 9 May Lancaster

Partly cloudy in the Evening, then becoming cloudy. Patchy fog after midnight. Lows around 50. South Winds 5 to 10 Mph, becoming southwest after midnight.

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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 °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

    45.8 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    63 °F
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