Mount Gretna Weather Forecast

    • 34
    • 52

    Sunny

    • 36
    • 59

    Sunny

    • 43
    • 64

    Mostly Sunny

    • 44
    • 67

    Mostly Sunny

    • 43
    • 63

    Partly Sunny

    • 47
    • 65

    Partly Sunny

    • 45
    • 64

    Partly Sunny

Today 17 Oct Lebanon

Mostly sunny. Highs in the lower 60s.

Tonight 17 Oct Lebanon

Clear. Widespread frost after midnight. Much cooler with Lows in the lower 30s. North Winds 5 to 10 Mph.

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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

    61.4 °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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