Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Washington Manassas Airport (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

A Few Clouds

69°F

21°C

Humidity	96%
Wind Speed	S 3 mph
Barometer	30.03 in (1017.2 mb)
Dewpoint	68°F (20°C)
Visibility	5.00 mi
Last update	10 Aug 5:56 am EDT

More Information:

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

Extended Forecast for

3 Miles NNW Haymarket VA

Today
High: 93 °F
Sunny then
Chance
T-storms
Tonight
Low: 72 °F
Slight Chance
T-storms
Tuesday
High: 89 °F
Partly Sunny
then Chance
T-storms
Tuesday Night
Low: 70 °F
Showers
Likely
Wednesday
High: 88 °F
Chance
Showers then
Slight Chance
T-storms
Wednesday Night
Low: 71 °F
Chance
Showers
Thursday
High: 90 °F
Mostly Sunny
then Slight
Chance
T-storms
Thursday Night
Low: 70 °F
Slight Chance
T-storms
Friday
High: 83 °F
Chance
Showers

Detailed Forecast

Today

A chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 93. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 30%.

Tonight

A slight chance of showers and thunderstorms, mainly between 1am and 2am. Mostly cloudy, with a low around 72. Light and variable wind becoming west around 5 mph. Chance of precipitation is 20%.

Tuesday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Northwest wind 5 to 7 mph. Chance of precipitation is 40%.

Tuesday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Light west wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

A chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Northwest wind around 5 mph. Chance of precipitation is 30%.

Wednesday Night

A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%.

Thursday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.

Thursday Night

A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 20%.

Friday

A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.

Friday Night

A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 20%.

Saturday

Mostly sunny, with a high near 84.

Saturday Night

A chance of showers. Partly cloudy, with a low around 66. Chance of precipitation is 30%.