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

Severe Thunderstorms, Heavy Rainfall and Dangerous Heat

Severe thunderstorms are expected today and Friday from the upper Midwest, central Great Lakes into the Ohio and mid-Mississippi Valley's. In addition, heavy rainfall threat increases on Friday across the Ohio Valley. Meanwhile, early summer-like heat wave across portions of southern Texas with new daily records are forecast today and through the weekend; The heat spreads across the Gulf States. Read More >

Hazardous Weather Conditions

Current conditions at

Lancaster, Lancaster Airport (KLNS)

Lat: 40.12°NLon: 76.29°WElev: 397ft.

Partly Cloudy

73°F

23°C

Humidity 76%
Wind Speed SE 5 mph
Barometer 29.81 in (1009.2 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 15 May 6:53 pm EDT
Extended Forecast for

Washington Boro PA

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Increasing clouds, with a low around 62. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms after 10am. Cloudy, then gradually becoming mostly sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers
    Likely then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms before 2pm, then a slight chance of showers. Partly sunny, with a high near 82. West wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58. West wind 8 to 11 mph.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Increasing clouds, with a low around 62. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers likely and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms after 10am. Cloudy, then gradually becoming mostly sunny, with a high near 84. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms before 2pm, then a slight chance of showers. Partly sunny, with a high near 82. West wind 6 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly clear, with a low around 58. West wind 8 to 11 mph.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 49.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 51. Chance of precipitation is 30%.
Wednesday
Showers likely. Partly sunny, with a high near 67. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Thursday
Showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Washington Boro PA
 39.98°N 76.43°W (Elev. 400 ft)
Last Update:
6:41 pm EDT May 15, 2025
Forecast Valid:
7pm EDT May 15, 2025-6pm EDT May 22, 2025
 
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