Major Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold in the North-Central U.S.

A large, long-duration winter storm is expected to bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies/Plains into the Mid-South beginning Friday, spreading eastward to the Mid-Atlantic and New England this weekend. An Arctic front will bring frigid temperatures and gusty winds that will lead to dangerous wind chills from the Northern Plains and Upper Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

47°F

8°C

Humidity	29%
Wind Speed	NW 10 G 18 mph
Barometer	30.09 in (1020.8 mb)
Dewpoint	16°F (-9°C)
Visibility	10.00 mi
Wind Chill	42°F (6°C)
Last update	22 Jan 4:56 pm EST

More Information:

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

Extended Forecast for

Olney MD

Winter Storm Watch January 24, 07:00pm until January 26, 07:00am

Cold Weather Advisory January 23, 08:00pm until January 24, 10:00am

Click here for hazard details and duration

Winter Storm Watch

Cold Weather Advisory

Tonight
Low: 27 °F
Decreasing
Clouds
Friday
High: 41 °F
Partly Sunny
Friday Night
Low: 7 °F
Mostly Cloudy
and Blustery
Saturday
High: 18 °F
Partly Sunny
then Slight
Chance Snow
Saturday Night
Low: 14 °F
Heavy Snow
Sunday
High: 23 °F
Wintry Mix
Sunday Night
Low: 17 °F
Sleet then
Snow/Sleet
Monday
High: 23 °F
Chance Snow
Monday Night
Low: 3 °F
Mostly Clear

Detailed Forecast

Tonight

Mostly cloudy, then gradually becoming mostly clear, with a low around 27. Northwest wind 3 to 8 mph.

Friday

Partly sunny, with a high near 41. West wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph.

Friday Night

Mostly cloudy, with a low around 7. Wind chill values as low as -11. Blustery, with a northwest wind 16 to 23 mph, with gusts as high as 32 mph.

Saturday

A slight chance of snow after 1pm. Mostly cloudy, with a high near 18. Wind chill values as low as -11. North wind 9 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Saturday Night

Snow. The snow could be heavy at times. Low around 14. Northeast wind 5 to 9 mph becoming light. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

Sunday

Freezing rain and sleet, possibly mixed with snow. The sleet could be heavy at times. High near 23. Chance of precipitation is 100%. New snow and sleet accumulation of 3 to 5 inches possible.

Sunday Night

Sleet before 1am, then a chance of snow. Low around 17. Chance of precipitation is 80%.

Monday

A chance of snow before 1pm. Partly sunny, with a high near 23. Chance of precipitation is 30%.

Monday Night

Mostly clear, with a low around 3.

Tuesday

Sunny, with a high near 20.

Tuesday Night

Partly cloudy, with a low around 6.

Wednesday

Partly sunny, with a high near 24.