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

56°F

13°C

Humidity 77%
Wind Speed Calm
Barometer 30.05 in (1017.5 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 15 May 10:53 pm EDT
Extended Forecast for

Cornwall PA

  • Tonight

    Tonight: Partly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 80. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers, mainly after midnight. Mostly cloudy, with a low around 61. Southwest wind 7 to 10 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers after 2pm. Mostly sunny, with a high near 84. West wind around 8 mph. Chance of precipitation is 20%.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers after 2pm. Sunny, with a high near 89. Chance of precipitation is 20%.

    High: 89 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 49. Calm wind.
Saturday
Sunny, with a high near 80. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
A chance of showers, mainly after midnight. Mostly cloudy, with a low around 61. Southwest wind 7 to 10 mph. Chance of precipitation is 30%.
Sunday
A slight chance of showers after 2pm. Mostly sunny, with a high near 84. West wind around 8 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 61. Calm wind.
Monday
A slight chance of showers after 2pm. Sunny, with a high near 89. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny and hot, with a high near 92.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Showers likely, mainly after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 70%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cornwall PA
 40.27°N 76.41°W (Elev. 633 ft)
Last Update:
8:06 pm EDT May 15, 2026
Forecast Valid:
11pm EDT May 15, 2026-6pm EDT May 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