National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
News Headlines

Hazardous Weather Conditions

Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Fair

35°F

2°C

Humidity 35%
Wind Speed W 20 G 26 mph
Barometer 30.17 in (1022.2 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill24°F (-4°C)
Last update 23 Jan 11:53 am EST
Extended Forecast for

Cornwall PA

Cold Weather Advisory January 23, 10:00pm until January 24, 10:00am
Winter Storm Warning January 24, 10:00pm until January 26, 01:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 32. Breezy, with a west wind 18 to 20 mph, with gusts as high as 32 mph.

    High: 32 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 5. Wind chill values as low as -10. Blustery, with a northwest wind 14 to 22 mph, with gusts as high as 30 mph.

    Low: 5 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 17. Wind chill values as low as -10. North wind 6 to 11 mph.

    High: 17 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Snow, mainly after 1am. Low around 13. Light and variable wind becoming east 5 to 9 mph in the evening. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 13 °F

    Slight Chance
    Snow then
    Snow

  • Sunday

    Sunday: Snow before 4pm, then snow, possibly mixed with freezing rain. The snow could be heavy at times. High near 23. East wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

    High: 23 °F

    Heavy Snow
    then Wintry
    Mix

  • Sunday Night

    Sunday Night: Snow, possibly mixed with freezing rain and sleet before 1am, then a chance of snow and sleet between 1am and 4am, then a chance of snow after 4am. Low around 19. Chance of precipitation is 90%. New snow and sleet accumulation of 2 to 4 inches possible.

    Low: 19 °F

    Wintry Mix

  • Monday

    Monday: A chance of snow before 1pm. Partly sunny, with a high near 25. Breezy. Chance of precipitation is 30%.

    High: 25 °F

    Chance Snow
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 3. Blustery.

    Low: 3 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 17.

    High: 17 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 32. Breezy, with a west wind 18 to 20 mph, with gusts as high as 32 mph.
Tonight
Mostly clear, with a low around 5. Wind chill values as low as -10. Blustery, with a northwest wind 14 to 22 mph, with gusts as high as 30 mph.
Saturday
Increasing clouds, with a high near 17. Wind chill values as low as -10. North wind 6 to 11 mph.
Saturday Night
Snow, mainly after 1am. Low around 13. Light and variable wind becoming east 5 to 9 mph in the evening. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Sunday
Snow before 4pm, then snow, possibly mixed with freezing rain. The snow could be heavy at times. High near 23. East wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Sunday Night
Snow, possibly mixed with freezing rain and sleet before 1am, then a chance of snow and sleet between 1am and 4am, then a chance of snow after 4am. Low around 19. Chance of precipitation is 90%. New snow and sleet accumulation of 2 to 4 inches possible.
Monday
A chance of snow before 1pm. Partly sunny, with a high near 25. Breezy. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 3. Blustery.
Tuesday
Mostly sunny, with a high near 17.
Tuesday Night
Partly cloudy, with a low around 5.
Wednesday
Mostly sunny, with a high near 19.
Wednesday Night
Mostly cloudy, with a low around 5.
Thursday
Partly sunny, with a high near 18.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cornwall PA
 40.27°N 76.41°W (Elev. 633 ft)
Last Update:
11:54 am EST Jan 23, 2026
Forecast Valid:
12pm EST Jan 23, 2026-6pm EST Jan 29, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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