Falmouth Weather Forecast

    • 60
    • 85

    Partly Sunny

    • 61
    • 87

    Mostly Sunny

    • 60
    • 85

    Partly Sunny

    • 59
    • 82

    Mostly Cloudy

    • 60
    • 76

    Slight Chance Rain Showers

    • 61
    • 83

    Slight Chance Thunderstorms

    • 62
    • 88

    Partly Sunny

Today 13 Sep Lancaster

Sunny. Highs in the lower 80s. Southwest Winds around 5 Mph.

Tonight 13 Sep Lancaster

Partly cloudy. Lows around 60. South Winds around 5 Mph.

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Falmouth Temperature Statistics

September Temperature

Harrisburg, Harrisburg International Airport (5 miles)

  • Lowest 8 September, 2025

    51.1 °F

  • Average September

    68.5 °F

  • Highest 5 September, 2025

    84 °F

Climate (2020–Present)

Harrisburg, Harrisburg International Airport (5 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    56.1 °F

  • Average High 2020–2025

    65.3 °F
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