National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Fair

75°F

24°C

Humidity 50%
Wind Speed NE 5 mph
Barometer 30.26 in (1024.4 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 29 Aug 1:53 pm EDT
Extended Forecast for

Mount Gretna PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 79. Calm wind.

    High: 79 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 62. Light southeast wind.

    Low: 62 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Southwest wind 5 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 3am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 69. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers, mainly before 7am. Partly sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 86 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 73.

    Low: 73 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 79. Calm wind.
Tonight
Increasing clouds, with a low around 62. Light southeast wind.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Southwest wind 5 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 3am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 69. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers, mainly before 7am. Partly sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Partly sunny, with a high near 91.
Tuesday Night
Mostly cloudy, with a low around 73.
Wednesday
Partly sunny, with a high near 91.
Wednesday Night
A chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Gretna PA
 40.26°N 76.47°W (Elev. 699 ft)
Last Update:
2:21 pm EDT Aug 29, 2026
Forecast Valid:
2pm EDT Aug 29, 2026-6pm EDT Sep 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation