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

81°F

27°C

Humidity 30%
Wind Speed W 9 G 22 mph
Barometer 29.99 in (1015.5 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 16 May 2:53 pm EDT
Extended Forecast for

Cornwall PA

  • Tonight

    Tonight: A slight chance of showers between 10pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 60. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 85. West wind around 7 mph.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 62. Light southwest wind.

    Low: 62 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy through mid morning, then gradual clearing, with a high near 89. Light southeast wind becoming south 5 to 9 mph in the afternoon.

    High: 89 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66. South wind 6 to 10 mph.

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 93.

    High: 93 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after 2pm. High near 92. Chance of precipitation is 80%.

    High: 92 °F

    Mostly Sunny
    then Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 58. Chance of precipitation is 80%.

    Low: 58 °F

    Showers then
    Chance
    Showers

Detailed Forecast

Tonight
A slight chance of showers between 10pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 60. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 85. West wind around 7 mph.
Sunday Night
Partly cloudy, with a low around 62. Light southwest wind.
Monday
Mostly cloudy through mid morning, then gradual clearing, with a high near 89. Light southeast wind becoming south 5 to 9 mph in the afternoon.
Monday Night
Mostly clear, with a low around 66. South wind 6 to 10 mph.
Tuesday
Sunny and hot, with a high near 93.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Showers and possibly a thunderstorm after 2pm. High near 92. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 58. Chance of precipitation is 80%.
Thursday
A chance of showers after 8am. Partly sunny, with a high near 69. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Saturday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Cornwall PA
 40.27°N 76.41°W (Elev. 633 ft)
Last Update:
2:21 pm EDT May 16, 2026
Forecast Valid:
3pm EDT May 16, 2026-6pm EDT May 23, 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