Mount Gretna Weather Forecast

    • 53
    • 77

    Mostly Sunny

    • 64
    • 83

    Chance Rain Showers

    • 69
    • 86

    Rain Showers

    • 72
    • 92

    Chance Thunderstorms

    • 67
    • 93

    Rain Showers Likely

    • 66
    • 88

    Mostly Sunny

    • 65
    • 89

    Chance Rain Showers

Today 8 Jun Lebanon

Mostly cloudy. Highs in the upper 70s. Southeast Winds 5 to 10 Mph.

Tonight 8 Jun Lebanon

Partly cloudy. Lows in the lower 50s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Gretna Temperature Statistics

June Temperature

Lancaster, Lancaster Airport (12.4 miles)

  • Lowest 2 June, 2026

    46.9 °F

  • Average June

    69.1 °F

  • Highest 5 June, 2026

    89.1 °F

Climate (2021–Present)

Lancaster, Lancaster Airport (12.4 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    65.1 °F
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