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

Manassas, Manassas Regional Airport/Harry P. Davis Field (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Light Rain

78°F

26°C

Humidity 76%
Wind Speed N 9 mph
Barometer 30.07 in (1018.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 19 May 5:56 pm EDT
Extended Forecast for

4 Miles SSW Clifton VA

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 7pm, then scattered showers and thunderstorms between 7pm and 8pm. Low around 73. Southwest wind 5 to 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 73 °F

    Showers then
    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms between 2pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 97. Light southwest wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 97 °F

    Sunny then
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Low around 59. North wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 5pm. High near 68. Northeast wind 9 to 11 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 68 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely after 8pm. Cloudy, with a low around 52. Northeast wind 3 to 8 mph. Chance of precipitation is 70%.

    Low: 52 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: Showers, with thunderstorms also possible after 2pm. High near 64. Chance of precipitation is 80%.

    High: 64 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm, then showers after 8pm. Low around 52. Chance of precipitation is 80%.

    Low: 52 °F

    Showers

  • Saturday

    Saturday: Showers. High near 68. Chance of precipitation is 80%.

    High: 68 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 7pm, then scattered showers and thunderstorms between 7pm and 8pm. Low around 73. Southwest wind 5 to 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms between 2pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 97. Light southwest wind becoming west 5 to 10 mph in the morning. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Low around 59. North wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers, with thunderstorms also possible after 5pm. High near 68. Northeast wind 9 to 11 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers likely after 8pm. Cloudy, with a low around 52. Northeast wind 3 to 8 mph. Chance of precipitation is 70%.
Friday
Showers, with thunderstorms also possible after 2pm. High near 64. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm, then showers after 8pm. Low around 52. Chance of precipitation is 80%.
Saturday
Showers. High near 68. Chance of precipitation is 80%.
Saturday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Sunday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Sunday Night
Showers likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Memorial Day
A chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Clifton VA
 38.73°N 77.4°W (Elev. 151 ft)
Last Update:
6:07 pm EDT May 19, 2026
Forecast Valid:
6pm EDT May 19, 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