Octoraro Lake Weather Forecast

    • 68
    • 94

    Increasing Clouds

    • 53
    • 90

    Rain Showers

    • 50
    • 64

    Chance Rain Showers

    • 47
    • 63

    Rain Showers

    • 51
    • 61

    Rain Showers Likely

    • 55
    • 69

    Chance Rain Showers

    • 57
    • 75

    Chance Rain Showers

Today 19 May Lancaster

Mostly sunny with a 20 percent chance of Showers. Hot. Near steady temperature in the lower 90s. West Winds around 10 Mph with Gusts up to 25 Mph.

Tonight 19 May Lancaster

Mostly cloudy in the Evening, then clearing. Lows in the upper 60s. Southwest Winds 5 to 10 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

    58.2 °F

  • Highest 17 May, 2026

    83.8 °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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