Octoraro Lake Weather Forecast

    • 60
    • 74

    Slight Chance Rain Showers

    • 61
    • 79

    Mostly Cloudy

    • 62
    • 79

    Mostly Cloudy

    • 52
    • 75

    Mostly Sunny

    • 52
    • 74

    Partly Sunny

    • 51
    • 73

    Partly Sunny

Today 25 May Lancaster

Mostly cloudy. Warmer with Highs in the lower 70s. Northwest Winds around 5 Mph.

Tonight 25 May Lancaster

Mostly cloudy. Patchy fog. Lows in the mid 50s. Light and variable Winds, becoming north around 5 Mph after midnight.

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  • Temperature Real-Time

Octoraro Lake Temperature Statistics

May Temperature

Chester County Airport (14.3 miles)

  • Lowest 1 May, 2026

    36.7 °F

  • Average May

    60.2 °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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