Severe Thunderstorms and Heavy Rain from the Plains to the Mid-Atlantic; Ongoing Heat in the South

Severe thunderstorms and showers pose a risk for excessive rain, localized flash flooding, strong gusts and/or large hail across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic this afternoon and evening. Extreme heat is ongoing over the Desert Southwest and the Southeast 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.

Thunderstorm in Vicinity

75°F

24°C

Humidity	94%
Wind Speed	N 3 mph
Barometer	29.87 in (1011.9 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Last update	9 Jul 4:56 pm EDT

More Information:

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

Extended Forecast for

Haymarket VA

Severe T-storm Watch July 9, 05:57pm until July 9, 10:00pm

Click here for hazard details and duration

Severe T-storm Watch

Severe T-storm Watch July 9, 05:57pm until July 9, 10:00pm
NOW until 10:00pm Thu
Severe T-storm Watch
This Afternoon
High: 79 °F
Severe
Thunderstorms
Tonight
Low: 69 °F
Severe
Thunderstorms
then Partly
Cloudy
Friday
High: 89 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 69 °F
Chance
T-storms then
Isolated
Showers
Saturday
High: 83 °F
Showers
Likely
Saturday Night
Low: 65 °F
Chance
T-storms then
Slight Chance
Showers
Sunday
High: 83 °F
Partly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 63 °F
Mostly Cloudy

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. Some of the storms could be severe. Steady temperature around 79. Light southwest wind. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms, mainly before 9pm. Some of the storms could be severe. Low around 69. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Friday

A chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 89. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 50%.

Friday Night

A chance of showers and thunderstorms before 11pm, then isolated showers. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 40%.

Saturday

Showers likely, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 83. Northwest wind 3 to 6 mph. Chance of precipitation is 70%.

Saturday Night

A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

Sunday

A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 20%.

Sunday Night

Mostly cloudy, with a low around 63.

Monday

Mostly sunny, with a high near 83.

Monday Night

Partly cloudy, with a low around 63.

Tuesday

Sunny, with a high near 88.

Tuesday Night

Mostly clear, with a low around 66.