Octoraro Lake Weather Forecast

    • 59
    • 74

    Rain Showers Likely

    • 60
    • 77

    Mostly Cloudy

    • 61
    • 80

    Mostly Cloudy

    • 53
    • 77

    Mostly Sunny

    • 53
    • 75

    Mostly Sunny

    • 53
    • 74

    Partly Sunny

Today 25 May Lancaster

Cloudy. Showers in the Morning, then a chance of Showers with a slight chance of Thunderstorms in the afternoon. Much warmer. Humid with Highs in the mid 70s. South Winds around 5 Mph, becoming northwest around 5 Mph in the afternoon. Chance of rain 80 percent.

Tonight 25 May Lancaster

Mostly cloudy. Patchy fog. Lows in the upper 50s. North Winds around 5 Mph.

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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

    60.7 °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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