Mount Gretna Weather Forecast

    • 58
    • 80

    Becoming Sunny

    • 57
    • 76

    Mostly Sunny

    • 59
    • 79

    Mostly Sunny

    • 66
    • 83

    Chance Rain Showers

    • 67
    • 84

    Rain Showers

    • 64
    • 83

    Slight Chance Thunderstorms

    • 62
    • 81

    Mostly Sunny

Today 23 Aug Lebanon

Mostly sunny with a 20 percent chance of Showers. Highs around 80. West Winds 10 to 15 Mph.

Tonight 23 Aug Lebanon

Partly cloudy. Lows in the upper 50s. West Winds 5 to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Gretna Temperature Statistics

August Temperature

Lancaster, Lancaster Airport (12.4 miles)

  • Lowest 21 August, 2026

    57 °F

  • Average August

    74.8 °F

  • Highest 6 August, 2026

    89.1 °F

Climate (2021–2026)

Lancaster, Lancaster Airport (12.4 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.1 °F
Get WillyWeather+ to remove ads