Octoraro Lake Weather Forecast

    • 56
    • 68

    Rain

    • 60
    • 76

    Rain Showers Likely

    • 60
    • 77

    Chance Rain Showers

    • 60
    • 79

    Slight Chance Rain Showers

    • 55
    • 78

    Slight Chance Rain Showers

    • 52
    • 73

    Partly Sunny

Today 24 May Lancaster

A slight chance of Thunderstorms. Showers, mainly in the morning. Not as cool with Highs in the upper 60s. East Winds 10 to 15 Mph. Chance of rain near 100 percent.

Tonight 24 May Lancaster

Cloudy. A chance of Showers in the Evening, then Showers likely after midnight. Lows in the mid 50s. East Winds around 5 Mph. Chance of rain 70 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

    60.9 °F

  • Highest 19 May, 2026

    92.1 °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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