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 >

Current conditions at

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

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Fair

64°F

18°C

Humidity 100%
Wind Speed Calm
Barometer 30.03 in (1017.4 mb)
Dewpoint 64°F (18°C)
Visibility 9.00 mi
Last update 20 May 3:56 am EDT
Extended Forecast for

2 Miles NW Bull Run VA

  • Today

    Today: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds and hot, with a high near 97. Calm wind becoming northwest 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 97 °F

    Sunny then
    Showers
    Likely

  • 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. North wind 5 to 7 mph becoming west in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 58 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 67. North wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers

  • Thursday Night

    Thursday Night: Showers, mainly after 2am. Low around 52. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 52 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 5pm. High near 62. East wind 6 to 8 mph. Chance of precipitation is 90%.

    High: 62 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 50. Chance of precipitation is 90%.

    Low: 50 °F

    Showers

  • Saturday

    Saturday: Showers. High near 66. Chance of precipitation is 80%.

    High: 66 °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. Mostly cloudy, with a high near 72. Chance of precipitation is 40%.

    High: 72 °F

    Chance
    Showers

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Increasing clouds and hot, with a high near 97. Calm wind becoming northwest 5 to 8 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
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. North wind 5 to 7 mph becoming west in the evening. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers and possibly a thunderstorm. High near 67. North wind around 10 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, mainly after 2am. Low around 52. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, with thunderstorms also possible after 5pm. High near 62. East wind 6 to 8 mph. Chance of precipitation is 90%.
Friday Night
Showers and possibly a thunderstorm. Low around 50. Chance of precipitation is 90%.
Saturday
Showers. High near 66. 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. Mostly cloudy, with a high near 72. Chance of precipitation is 40%.
Sunday Night
A chance of showers before 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.
Memorial Day
A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. 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. Mostly cloudy, with a high near 83. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Bull Run VA
 38.81°N 77.55°W (Elev. 253 ft)
Last Update:
2:22 am EDT May 20, 2026
Forecast Valid:
4am 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