Mount Gretna Weather Forecast

    • 44
    • 68

    Becoming Sunny

    • 42
    • 62

    Sunny

    • 52
    • 70

    Sunny

    • 50
    • 73

    Mostly Sunny

    • 50
    • 70

    Mostly Sunny

    • 49
    • 69

    Partly Sunny

Today 5 Oct Lebanon

Mostly sunny. Near steady temperature in the upper 60s. Northwest Winds 15 to 20 Mph.

Tonight 5 Oct Lebanon

Mostly clear. Cooler with Lows in the lower 40s. Northwest Winds 10 to 15 Mph.

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  • Temperature Real-Time

Mount Gretna Temperature Statistics

October Temperature

Lancaster, Lancaster Airport (12.4 miles)

  • Lowest 3 October, 2026

    57 °F

  • Average October

    67.8 °F

  • Highest 2 October, 2026

    84 °F

Climate (2021–2026)

Lancaster, Lancaster Airport (12.4 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65 °F
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