Octoraro Lake Weather Forecast

    • 52
    • 90

    Severe Tstms

    • 51
    • 61

    Rain Showers

    • 46
    • 63

    Rain Showers

    • 49
    • 58

    Rain Showers

    • 56
    • 69

    Chance Rain Showers

    • 58
    • 74

    Chance Rain Showers

    • 59
    • 78

    Chance Rain Showers

Today 20 May Lancaster

Showers with Thunderstorms likely. Some Thunderstorms may be severe with damaging Winds and large hail. Hot with Highs in the upper 80s. West Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 80 percent.

Tonight 20 May Lancaster

Mostly cloudy. Showers and Thunderstorms likely in the Evening, then a chance of Showers after midnight. Some Thunderstorms may be severe with damaging Winds and large hail. Cooler with Lows in the mid 50s. North Winds 5 to 10 Mph. Chance of rain 70 percent.

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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

    59.4 °F

  • Highest 18 May, 2026

    90.5 °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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