Mount Gretna Weather Forecast

    • 38
    • 54

    Rain Showers

    • 29
    • 48

    Partly Sunny

    • 44
    • 54

    Partly Sunny

    • 43
    • 66

    Mostly Sunny

    • 50
    • 71

    Mostly Sunny

    • 53
    • 75

    Partly Sunny

Today 19 Apr Lebanon

Showers this Morning, then partly sunny this afternoon. Much cooler with Highs in the mid 50s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph. Chance of rain near 100 percent.

Tonight 19 Apr Lebanon

Mostly clear in the Evening, then becoming partly cloudy. Cooler with Lows in the mid 30s. West Winds 10 to 15 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

    55.3 °F

  • Highest 16 April, 2026

    88 °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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