Mount Gretna Weather Forecast

    • 58
    • 61

    Rain

    • 56
    • 72

    Mostly Cloudy

    • 64
    • 78

    Mostly Sunny

    • 57
    • 78

    Partly Sunny

    • 54
    • 66

    Chance Rain Showers

    • 47
    • 68

    Chance Rain Showers

    • 36
    • 53

    Slight Chance Rain Showers

Today 11 Oct Lebanon

Sunny. Highs in the mid 50s.

Tonight 11 Oct Lebanon

Rain with a slight chance of Thunderstorms this Evening, then rain likely after midnight. Mild. Near steady temperature in the upper 50s. Northeast Winds 10 to 15 Mph. Gusts up to 30 Mph this evening. Chance of rain 90 percent.

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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

    60.7 °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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