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Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Fair

49°F

9°C

Humidity 35%
Wind Speed NW 17 G 24 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 19 Apr 7:53 pm EDT
Extended Forecast for

Lancaster Airport PA

Freeze Watch April 21, 12:00am until April 21, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Tonight

    Tonight: Increasing clouds, with a low around 37. Northwest wind 5 to 10 mph becoming light and variable.

    Low: 37 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 50. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Widespread frost after 4am. Otherwise, mostly clear, with a low around 28. Northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 28 °F

    Partly Cloudy
    then Frost

  • Tuesday

    Tuesday: Widespread frost before 7am. Otherwise, sunny, with a high near 55. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 55 °F

    Frost then
    Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 41. South wind around 8 mph. Chance of precipitation is 30%.

    Low: 41 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers, mainly before 2pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.

    High: 67 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 37. Northwest wind 5 to 10 mph becoming light and variable.
Monday
Mostly sunny, with a high near 50. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Widespread frost after 4am. Otherwise, mostly clear, with a low around 28. Northwest wind 5 to 9 mph becoming calm after midnight.
Tuesday
Widespread frost before 7am. Otherwise, sunny, with a high near 55. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 41. South wind around 8 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers, mainly before 2pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 75.
Friday Night
A chance of showers. Partly cloudy, with a low around 52. Chance of precipitation is 40%.
Saturday
Showers likely. Mostly cloudy, with a high near 68. Chance of precipitation is 60%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lancaster Airport PA
 40.13°N 76.29°W (Elev. 397 ft)
Last Update:
8:06 pm EDT Apr 19, 2026
Forecast Valid:
8pm EDT Apr 19, 2026-6pm EDT Apr 26, 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