Green Bank Weather Forecast

    • 59
    • 81

    Rain Showers

    • 49
    • 72

    Partly Sunny

    • 49
    • 73

    Mostly Sunny

    • 53
    • 74

    Mostly Cloudy

    • 52
    • 73

    Partly Sunny

    • 54
    • 79

    Mostly Sunny

    • 49
    • 73

    Mostly Sunny

Today 6 Sep Lancaster

Showers likely with a chance of Thunderstorms. Some Thunderstorms may be severe with damaging Winds. Highs in the lower 80s. West Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 6 Sep Lancaster

Showers likely with a chance of Thunderstorms this Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Some Thunderstorms may be severe with damaging Winds this evening. Lows in the upper 50s. Northwest Winds 5 to 10 Mph. Chance of rain 70 percent.

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Green Bank Temperature Statistics

September Temperature

Chester County Airport (11.2 miles)

  • Lowest 1 September, 2025

    53.6 °F

  • Average September

    66.2 °F

  • Highest 4 September, 2025

    82.4 °F

Climate (2020–Present)

Chester County Airport (11.2 miles)

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  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    63.1 °F
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