Mount Gretna Weather Forecast

    • 66
    • 86

    Slight Chance Rain Showers

    • 63
    • 85

    Mostly Cloudy

    • 57
    • 77

    Chance Rain Showers

    • 53
    • 80

    Mostly Cloudy

    • 38
    • 65

    Rain Showers Likely

    • 32
    • 51

    Mostly Sunny

Today 15 Apr Lebanon

Mostly sunny. Continued Unseasonably hot with Highs in the upper 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 15 Apr Lebanon

Partly cloudy. Unseasonably mild. Lows in the lower 60s. West Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Gretna Temperature Statistics

April Temperature

Lancaster, Lancaster Airport (12.4 miles)

  • Lowest 8 April, 2026

    27 °F

  • Average April

    51.4 °F

  • Highest 4 April, 2026

    80.1 °F

Climate (2021–Present)

Lancaster, Lancaster Airport (12.4 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    55.6 °F

  • Average High 2021–2026

    65.2 °F
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