Threats of Heavy Rainfall, Severe Thunderstorms and Dangerous Heat

Several complexes of thunderstorms, some severe with heavy rainfall, will impact areas from the northern Plains, Great Lakes, Ohio Valley to the mid-Atlantic. This threat will shift toward the Carolinas on Friday. Heavy rainfall, remnants of Edouard, continues for portions of eastern Texas through today. In-between these systems, a dome of high pressure and heat for central and eastern states. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Washington Manassas Airport (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Mostly Cloudy

79°F

26°C

Humidity	82%
Wind Speed	Calm
Barometer	30.07 in (1018.5 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	82°F (28°C)
Last update	3 Sep 10:56 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

2 Miles NW Bull Run VA

Today
High: 94 °F
Scattered
T-storms
Tonight
Low: 71 °F
Showers
Likely then
Patchy Fog
Friday
High: 93 °F
Patchy Fog
then Showers
Friday Night
Low: 70 °F
Chance
T-storms then
Chance
Showers
Saturday
High: 85 °F
Partly Sunny
then Chance
Showers
Saturday Night
Low: 62 °F
Chance
Showers then
Partly Cloudy
Sunday
High: 83 °F
Mostly Sunny
Sunday Night
Low: 60 °F
Mostly Clear
Labor Day
High: 83 °F
Sunny

Detailed Forecast

Today

Scattered showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 94. Heat index values as high as 102. West wind around 6 mph. Chance of precipitation is 30%.

Tonight

Showers and thunderstorms likely before midnight, then isolated showers after 5am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 71. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

A slight chance of showers, then showers and possibly a thunderstorm after 2pm. Patchy fog before 8am. High near 93. Heat index values as high as 102. Calm wind becoming northwest 5 to 8 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

Saturday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. North wind 5 to 7 mph. Chance of precipitation is 30%.

Saturday Night

A chance of showers before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 30%.

Sunday

Mostly sunny, with a high near 83.

Sunday Night

Mostly clear, with a low around 60.

Labor Day

Sunny, with a high near 83.

Monday Night

Partly cloudy, with a low around 61.