Mount Gretna Weather Forecast

    • 51
    • 62

    Increasing Clouds

    • 58
    • 78

    Slight Chance Rain Showers

    • 62
    • 81

    Partly Sunny

    • 65
    • 86

    Mostly Cloudy

    • 61
    • 84

    Chance Rain Showers

    • 57
    • 77

    Chance Rain Showers

Today 12 Apr Lebanon

Mostly sunny. Highs in the lower 60s. East Winds 5 to 10 Mph, becoming south 10 to 15 Mph with Gusts up to 25 Mph in the afternoon.

Tonight 12 Apr Lebanon

Mostly cloudy. Not as cool with Lows in the upper 40s. South 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

    50.6 °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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