Major Winter Storm to Impact the Mid-Atlantic and Northeast; Inclement Weather in the Pacific Northwest

A major winter storm is expected to bring heavy snow, strong winds, and coastal flooding across the Mid-Atlantic and Northeast that may cause impossible travel conditions and power outages. Blizzard conditions are possible along coastal areas from the DelMarVa Peninsula through southeastern New England. Wet weather and strong winds return to the Pacific Northwest and north-central California. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Light Snow

32°F

0°C

Humidity	NA
Wind Speed	NW 6 mph
Barometer	29.84 in (1012.3 mb)
Dewpoint	N/A
Visibility	0.75 mi
Wind Chill	26°F (-3°C)
Last update	22 Feb 5:56 pm EST

More Information:

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

Extended Forecast for

3 Miles W North Potomac MD

Winter Weather Advisory until February 23, 10:00am

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory until February 23, 10:00am
NOW until 10:00am Mon
Winter Weather Advisory
Tonight
Low: 32 °F
Rain/Snow
then Snow
Likely
Monday
High: 39 °F
Chance Snow
and Breezy
Monday Night
Low: 21 °F
Mostly Cloudy
and Blustery
then Partly
Cloudy
Tuesday
High: 37 °F
Mostly Sunny
Tuesday Night
Low: 28 °F
Mostly Cloudy
then Chance
Snow
Wednesday
High: 52 °F
Mostly Sunny
Wednesday Night
Low: 35 °F
Partly Cloudy
then Chance
Rain
Thursday
High: 52 °F
Rain Likely

Detailed Forecast

Tonight

Snow, possibly mixed with rain, becoming all snow after midnight. The snow could be heavy at times. Low around 32. Northwest wind 11 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 5 inches possible.

Monday

A chance of snow, mainly before noon. Cloudy, with a high near 39. Breezy, with a northwest wind 18 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 40%.

Monday Night

Partly cloudy, with a low around 21. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 31 mph.

Tuesday

Mostly sunny, with a high near 37. West wind 9 to 15 mph, with gusts as high as 24 mph.

Tuesday Night

A chance of snow after 1am. Mostly cloudy, with a low around 28. Light south wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

Wednesday

Mostly sunny, with a high near 52.

Wednesday Night

A chance of rain after 1am. Partly cloudy, with a low around 35. Chance of precipitation is 30%.

Thursday

Rain likely. Mostly cloudy, with a high near 52. Chance of precipitation is 70%.

Thursday Night

Rain likely, mainly before 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.

Friday

Mostly sunny, with a high near 47.

Friday Night

Mostly clear, with a low around 31.