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

Severe Thunderstorms and Flooding from the Southern Plains to the Great Lakes; Record Heat in the East

Widely scattered severe thunderstorms may produce damaging winds, hail, and flash flooding from the southern Plains into the lower Great Lakes. Elevated to locally critical fire weather conditions will persist across portions of the Southwest and Southern High Plains due to gusty winds and dry conditions. An early-season heatwave will challenge temperature records across the eastern U.S.. Read More >

Hazardous Weather Conditions

Current conditions at

Culpeper Regional Airport (KCJR)

Lat: 38.53°NLon: 77.86°WElev: 295ft.

Fog/Mist

64°F

18°C

Humidity 96%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 63°F (17°C)
Visibility 4.00 mi
Last update 20 May 4:55 am EDT
Extended Forecast for

2 Miles NW Sumerduck VA

  • Today

    Today: A chance of showers and thunderstorms, mainly after 3pm. Sunny and hot, with a high near 97. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 97 °F

    Sunny then
    Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then showers likely and possibly a thunderstorm between midnight and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 58. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 68. North wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Showers

  • Thursday Night

    Thursday Night: Showers. Low around 51. Light north wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 51 °F

    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 2pm. High near 62. Northeast wind 3 to 6 mph. Chance of precipitation is 90%.

    High: 62 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 49. Chance of precipitation is 90%.

    Low: 49 °F

    Showers

  • Saturday

    Saturday: Showers. High near 67. Chance of precipitation is 80%.

    High: 67 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers before 8am, then a chance of showers after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.

    High: 73 °F

    Chance
    Showers

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly after 3pm. Sunny and hot, with a high near 97. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely before midnight, then showers likely and possibly a thunderstorm between midnight and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 58. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 68. North wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers. Low around 51. Light north wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, with thunderstorms also possible after 2pm. High near 62. Northeast wind 3 to 6 mph. Chance of precipitation is 90%.
Friday Night
Showers and possibly a thunderstorm. Low around 49. Chance of precipitation is 90%.
Saturday
Showers. High near 67. Chance of precipitation is 80%.
Saturday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Sunday
A chance of showers before 8am, then a chance of showers after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 50%.
Sunday Night
A chance of showers before 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.
Memorial Day
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Sumerduck VA
 38.47°N 77.75°W (Elev. 299 ft)
Last Update:
4:53 am EDT May 20, 2026
Forecast Valid:
5am EDT May 20, 2026-6pm EDT May 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