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.

A Few Clouds

70°F

21°C

Humidity 90%
Wind Speed W 5 mph
Barometer 29.88 in (1011.5 mb)
Dewpoint 67°F (19°C)
Visibility 8.00 mi
Last update 12 Aug 6:53 am EDT
Extended Forecast for

Mount Gretna PA

  • Today

    Today: Mostly sunny, with a high near 85. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 85 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 68. South wind 3 to 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 85. West wind 5 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 68. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. North wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 50%.

    High: 83 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 85. Calm wind becoming northwest around 5 mph in the afternoon.
Tonight
A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 68. South wind 3 to 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly sunny, with a high near 85. West wind 5 to 8 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 68. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. North wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Sunday Night
Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 70%.
Monday
A chance of showers. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Gretna PA
 40.24°N 76.5°W (Elev. 673 ft)
Last Update:
6:11 am EDT Aug 12, 2026
Forecast Valid:
7am EDT Aug 12, 2026-6pm EDT Aug 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation