Mount Gretna Weather Forecast

    • 71
    • 83

    Rain Showers Likely

    • 71
    • 88

    Rain Showers Likely

    • 70
    • 87

    Rain Showers

    • 70
    • 86

    Chance Thunderstorms

    • 70
    • 87

    Partly Sunny

    • 70
    • 89

    Chance Thunderstorms

Today 5 Aug Lebanon

Showers likely with a chance of Thunderstorms. Near steady temperature in the lower 80s. Southeast Winds around 5 Mph. Chance of rain 70 percent.

Tonight 5 Aug Lebanon

Mostly cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Patchy fog after midnight. Warm with Lows around 70. Southeast Winds around 5 Mph. Chance of rain 70 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Gretna Temperature Statistics

August Temperature

Lancaster, Lancaster Airport (12.4 miles)

  • Lowest 1 August, 2026

    64 °F

  • Average August

    76.8 °F

  • Highest 1 August, 2026

    86 °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