Octoraro Lake Weather Forecast

    • 64
    • 90

    Chance Thunderstorms

    • 58
    • 82

    Partly Sunny

    • 59
    • 79

    Mostly Sunny

    • 61
    • 82

    Rain Showers

    • 60
    • 80

    Rain Showers

    • 59
    • 80

    Mostly Sunny

Today 18 Jun Lancaster

Mostly cloudy in the Morning, then becoming partly sunny. A chance of Showers. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Some Thunderstorms may produce gusty Winds and small hail in the morning. Some Thunderstorms may produce gusty Winds and small hail in the afternoon. Very warm. Humid with Highs in the upper 80s. South Winds 15 to 20 Mph with Gusts up to 30 Mph, becoming southwest with Gusts up to 40 Mph in the afternoon. Chance of rain 50 percent.

Tonight 18 Jun Lancaster

Mostly cloudy. Not as cool with Lows in the upper 60s. South Winds around 10 Mph with Gusts up to 20 Mph.

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Octoraro Lake Temperature Statistics

June Temperature

Chester County Airport (14.3 miles)

  • Lowest 2 June, 2026

    44.4 °F
  • Average June

    71.8 °F
  • Highest 12 June, 2026

    91.6 °F

Climate (2021–2026)

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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