Octoraro Lake Weather Forecast

    • 63
    • 78

    Mostly Cloudy

    • 59
    • 79

    Chance Rain Showers

    • 52
    • 76

    Mostly Sunny

    • 52
    • 73

    Mostly Sunny

    • 51
    • 71

    Partly Sunny

    • 52
    • 70

    Mostly Sunny

Today 26 May Lancaster

Partly sunny. Highs in the upper 70s. East Winds around 5 Mph, becoming south in the afternoon.

Tonight 26 May Lancaster

Mostly cloudy. Areas of dense fog. Visibility one quarter mile or less at Times. Lows around 60. 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

    60.2 °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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