Mount Gretna Weather Forecast

    • 60
    • 81

    Mostly Cloudy

    • 62
    • 82

    Mostly Sunny

    • 65
    • 84

    Partly Sunny

    • 68
    • 86

    Rain Showers Likely

    • 66
    • 85

    Rain Showers

    • 63
    • 84

    Slight Chance Thunderstorms

Today 24 Jul Lebanon

Mostly sunny. Highs in the lower 80s. Southeast Winds 5 to 10 Mph.

Tonight 24 Jul Lebanon

Mostly cloudy. Lows in the upper 50s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Gretna Temperature Statistics

July Temperature

Lancaster, Lancaster Airport (12.4 miles)

  • Lowest 20 July, 2026

    57.9 °F

  • Average July

    77.3 °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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