Octoraro Lake Weather Forecast

    • 61
    • 78

    Rain Showers Likely

    • 59
    • 79

    Rain Showers Likely

    • 52
    • 76

    Mostly Sunny

    • 55
    • 73

    Mostly Sunny

    • 50
    • 73

    Partly Sunny

    • 52
    • 72

    Partly Sunny

    • 51
    • 72

    Partly Sunny

Today 26 May Lancaster

Mostly cloudy. Highs around 80. Southwest Winds around 5 Mph.

Tonight 26 May Lancaster

Cloudy. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Patchy fog after midnight. Lows in the lower 60s. Southwest Winds around 5 Mph. Chance of rain 50 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

    59.9 °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

    62.9 °F
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