Mount Gretna Weather Forecast

    • 70
    • 86

    Thunderstorms

    • 66
    • 84

    Partly Sunny

    • 63
    • 84

    Mostly Sunny

    • 63
    • 83

    Mostly Sunny

    • 69
    • 86

    Partly Sunny

    • 72
    • 90

    Slight Chance Thunderstorms

Today 1 Jul Lebanon

Mostly cloudy. A slight chance of Showers this Morning, then Showers and Thunderstorms this afternoon. Some Thunderstorms may produce gusty Winds and heavy rainfall this afternoon. Highs in the mid 80s. Southwest Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 1 Jul Lebanon

Cloudy. Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Some Thunderstorms may produce gusty Winds and heavy rainfall in the evening. Humid with Lows in the upper 60s. Southwest Winds around 5 Mph. Chance of rain 70 percent.

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Mount Gretna Temperature Statistics

July Temperature

Lancaster, Lancaster Airport (12.4 miles)

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Climate (2020–Present)

Lancaster, Lancaster Airport (12.4 miles)

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  • Average Low 2020–2025

    46.4 °F

  • Average 2020–2025

    56 °F

  • Average High 2020–2025

    65.7 °F
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