Mount Gretna Weather Forecast

    • 67
    • 84

    Chance Rain Showers

    • 65
    • 78

    Rain Showers

    • 64
    • 79

    Rain Showers

    • 63
    • 80

    Mostly Sunny

    • 65
    • 84

    Partly Sunny

    • 67
    • 86

    Chance Rain Showers

Today 27 Jul Lebanon

Partly sunny with a chance of Showers and Thunderstorms. Highs in the mid 80s. West Winds around 5 Mph. Chance of rain 50 percent.

Tonight 27 Jul Lebanon

Mostly cloudy with a chance of Showers. A chance of Thunderstorms, mainly in the evening. Humid with Lows in the mid 60s. South Winds around 5 Mph. Chance of rain 40 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Gretna Temperature Statistics

July Temperature

Lancaster, Lancaster Airport (12.4 miles)

  • Lowest 24 July, 2026

    54 °F

  • Average July

    76.3 °F

  • Highest 2 July, 2026

    102.9 °F

Climate (2021–2026)

Lancaster, Lancaster Airport (12.4 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.1 °F
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