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

67°F

19°C

Humidity 91%
Wind Speed E 5 mph
Barometer 30.14 in (1020.4 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 16 Aug 12:53 am EDT
Extended Forecast for

Marietta PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 70. Light southeast wind.

    Low: 70 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 80. Southeast wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 80 °F

    Showers
    Likely then
    Showers

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before 2am. Low around 69. South wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 69 °F

    Showers

  • Monday

    Monday: A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Northwest wind 7 to 9 mph. Chance of precipitation is 20%.

    High: 87 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. Northwest wind 3 to 6 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 70. Light southeast wind.
Sunday
Showers and possibly a thunderstorm. High near 80. Southeast wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers and thunderstorms, mainly before 2am. Low around 69. South wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Northwest wind 7 to 9 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 66. Northwest wind 3 to 6 mph.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 86.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Thursday
A chance of showers after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marietta PA
 40.07°N 76.56°W (Elev. 299 ft)
Last Update:
9:46 pm EDT Aug 15, 2026
Forecast Valid:
1am EDT Aug 16, 2026-6pm EDT Aug 22, 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