Octoraro Lake Weather Forecast

    • 52
    • 75

    Mostly Sunny

    • 46
    • 67

    Mostly Sunny

    • 53
    • 72

    Mostly Sunny

    • 52
    • 75

    Mostly Sunny

    • 51
    • 73

    Slight Chance Thunderstorms

    • 52
    • 74

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

Today 29 May Lancaster

Sunny. Near steady temperature in the mid 70s. West Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 29 May Lancaster

Mostly clear. Lows in the lower 50s. West Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming northwest 10 to 15 Mph with Gusts up to 30 Mph after midnight.

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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

    60.8 °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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