Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Fort Belvoir (KDAA)

Lat: 38.72°NLon: 77.18°WElev: 69ft.

Fair

22°F

-6°C

Humidity	40%
Wind Speed	N 7 mph
Barometer	30.18 in (1022.4 mb)
Dewpoint	1°F (-17°C)
Visibility	10.00 mi
Wind Chill	13°F (-11°C)
Last update	31 Jan 11:55 am EST

More Information:

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

Extended Forecast for

Mount Vernon VA

Cold Weather Advisory January 31, 10:00pm until February 1, 01:00pm

Click here for hazard details and duration

Cold Weather Advisory

This Afternoon
High: 21 °F
Slight Chance
Snow
Tonight
Low: 11 °F
Slight Chance
Snow then
Mostly Cloudy
Sunday
High: 27 °F
Partly Sunny
and Blustery
Sunday Night
Low: 16 °F
Mostly Clear
Monday
High: 34 °F
Sunny
Monday Night
Low: 15 °F
Mostly Clear
Tuesday
High: 38 °F
Mostly Sunny
Tuesday Night
Low: 26 °F
Mostly Cloudy
then Chance
Snow
Wednesday
High: 33 °F
Chance Snow

Detailed Forecast

This Afternoon

A slight chance of snow between 4pm and 5pm. Mostly cloudy, with a high near 21. North wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

Tonight

A slight chance of snow between 7pm and 8pm. Mostly cloudy, with a low around 11. Wind chill values as low as -4. North wind 9 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

Sunday

Partly sunny, with a high near 27. Wind chill values as low as -4. Blustery, with a northwest wind 17 to 21 mph, with gusts as high as 37 mph.

Sunday Night

Mostly clear, with a low around 16. Northwest wind 10 to 14 mph, with gusts as high as 29 mph.

Monday

Sunny, with a high near 34. Northwest wind 7 to 10 mph, with gusts as high as 26 mph.

Monday Night

Mostly clear, with a low around 15.

Tuesday

Mostly sunny, with a high near 38.

Tuesday Night

A chance of snow after 1am. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.