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.

Overcast

49°F

9°C

Humidity 74%
Wind Speed W 3 mph
Barometer 29.86 in (1011.2 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 15 May 2:53 am EDT
Extended Forecast for

3 Miles SSW Mount Gretna PA

  • Overnight

    Overnight: Cloudy, with a low around 45. Northwest wind around 10 mph.

    Low: 45 °F

    Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 70. Northwest wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 70 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Light and variable wind.

    Low: 49 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 81. Light west wind becoming southwest 5 to 10 mph in the afternoon.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 60. South wind 5 to 8 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 86. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Overnight
Cloudy, with a low around 45. Northwest wind around 10 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 70. Northwest wind 11 to 14 mph, with gusts as high as 23 mph.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Light and variable wind.
Saturday
Sunny, with a high near 81. Light west wind becoming southwest 5 to 10 mph in the afternoon.
Saturday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 60. South wind 5 to 8 mph. Chance of precipitation is 20%.
Sunday
A slight chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 86. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Sunny and hot, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Showers likely. Mostly sunny, with a high near 89. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly sunny, with a high near 78. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Mount Gretna PA
 40.22°N 76.5°W (Elev. 492 ft)
Last Update:
2:39 am EDT May 15, 2026
Forecast Valid:
3am EDT May 15, 2026-6pm EDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation