Mount Gretna Weather Forecast

    • 30
    • 49

    Mostly Sunny

    • 38
    • 57

    Partly Sunny

    • 48
    • 69

    Slight Chance Rain Showers

    • 39
    • 60

    Mostly Sunny

    • 51
    • 62

    Mostly Cloudy

    • 61
    • 77

    Mostly Cloudy

    • 65
    • 84

    Mostly Cloudy

Today 8 Apr Lebanon

Sunny. Near steady temperature in the lower 50s. South Winds around 5 Mph.

Tonight 8 Apr Lebanon

Mostly clear. Widespread frost after midnight. Lows in the upper 20s. Southeast 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 6 April, 2026

    39 °F

  • Average April

    55 °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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