Mount Gretna Weather Forecast

    • 53
    • 69

    Partly Sunny

    • 41
    • 70

    Mostly Sunny

    • 41
    • 61

    Partly Sunny

    • 43
    • 63

    Mostly Cloudy

    • 48
    • 66

    Mostly Cloudy

    • 50
    • 70

    Mostly Cloudy

    • 56
    • 71

    Chance Rain

Today 29 Oct Lebanon

Mostly cloudy. A chance of rain in the Morning, then rain likely in the afternoon. Highs in the lower 70s. Chance of rain 60 percent.

Tonight 29 Oct Lebanon

Mostly clear this Evening, then becoming partly cloudy. Lows in the lower 50s. Southwest Winds around 5 Mph.

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  • Temperature Real-Time

Mount Gretna Temperature Statistics

October Temperature

Lancaster, Lancaster Airport (12.4 miles)

  • Lowest 18 October, 2026

    34 °F

  • Average October

    57 °F

  • Highest 2 October, 2026

    84 °F

Climate (2021–2026)

Lancaster, Lancaster Airport (12.4 miles)

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  • Average Low 2021–2026

    45.7 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    65 °F
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