Mount Gretna Weather Forecast

    • 54
    • 81

    Mostly Cloudy

    • 57
    • 64

    Rain Showers

    • 47
    • 79

    Rain Showers

    • 35
    • 52

    Mostly Sunny

    • 37
    • 56

    Mostly Sunny

    • 43
    • 61

    Partly Sunny

    • 45
    • 64

    Partly Sunny

Today 14 Oct Lebanon

Sunny. Highs in the mid 60s.

Tonight 14 Oct Lebanon

Mostly cloudy. Lows in the lower 50s. Northwest Winds around 10 Mph, becoming north after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Gretna Temperature Statistics

October Temperature

Lancaster, Lancaster Airport (12.4 miles)

  • Lowest 7 October, 2026

    39.9 °F

  • Average October

    60.4 °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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