Mount Gretna Weather Forecast

    • 46
    • 67

    Mostly Sunny

    • 43
    • 63

    Mostly Sunny

    • 47
    • 65

    Mostly Cloudy

    • 50
    • 70

    Mostly Sunny

    • 46
    • 73

    Partly Sunny

    • 49
    • 68

    Mostly Cloudy

    • 53
    • 68

    Mostly Cloudy

Today 26 Oct Lebanon

Mostly cloudy. Highs in the upper 60s.

Tonight 26 Oct Lebanon

Mostly clear this Evening, then becoming partly cloudy. Not as cool with Lows in the mid 40s. West Winds around 5 Mph, becoming north around 5 Mph after midnight.

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Mount Gretna Temperature Statistics

October Temperature

Lancaster, Lancaster Airport (12.4 miles)

  • Lowest 18 October, 2026

    34 °F

  • Average October

    57.8 °F

  • Highest 2 October, 2026

    84 °F

Climate (2021–2026)

Lancaster, Lancaster Airport (12.4 miles)

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  • Average Low 2021–2026

    45.7 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    65 °F
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