Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

11°F

-12°C

Humidity	44%
Wind Speed	N 7 mph
Barometer	30.55 in (1037.0 mb)
Dewpoint	-7°F (-22°C)
Visibility	10.00 mi
Wind Chill	0°F (-18°C)
Last update	24 Jan 1:56 am EST

More Information:

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

Extended Forecast for

Rockville MD

Cold Weather Advisory January 24, 02:00am until January 24, 10:00am

Winter Storm Warning January 24, 11:00pm until January 26, 04:00am

Click here for hazard details and duration

Cold Weather Advisory

Winter Storm Warning

Cold Weather Advisory January 24, 02:00am until January 24, 10:00am
NOW until 10:00am Sat
Cold Weather Advisory
Overnight
Low: 8 °F
Partly Cloudy
Saturday
High: 20 °F
Increasing
Clouds
Saturday Night
Low: 16 °F
Chance Snow
then Heavy
Snow
Sunday
High: 26 °F
Wintry Mix
Sunday Night
Low: 18 °F
Wintry Mix
Monday
High: 27 °F
Chance Snow
Monday Night
Low: 3 °F
Mostly Clear
Tuesday
High: 21 °F
Sunny

Detailed Forecast

Overnight

Partly cloudy, with a low around 8. Wind chill values as low as -7. North wind around 14 mph, with gusts as high as 24 mph.

Saturday

Increasing clouds, with a high near 20. Wind chill values as low as -6. North wind 5 to 9 mph, with gusts as high as 18 mph.

Saturday Night

Snow, mainly after midnight. The snow could be heavy at times. Low around 16. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Sunday

Snow and sleet before 1pm, then sleet, possibly mixed with snow and freezing rain. The snow and sleet could be heavy at times. High near 26. East wind 6 to 9 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. New snow and sleet accumulation of 3 to 7 inches possible.

Sunday Night

Sleet, possibly mixed with snow and freezing rain before 10pm, then freezing rain and sleet between 10pm and 4am, then a chance of snow and sleet after 4am. Low around 18. Northeast wind around 6 mph becoming northwest after midnight. Chance of precipitation is 100%. New snow and sleet accumulation of less than one inch possible.

Monday

A chance of snow before 7am, then a chance of snow showers between 7am and 1pm. Mostly sunny, with a high near 27. Chance of precipitation is 30%.

Monday Night

Mostly clear, with a low around 3.

Tuesday

Sunny, with a high near 21.

Tuesday Night

Partly cloudy, with a low around 6.

Wednesday

Mostly sunny, with a high near 23.

Wednesday Night

Mostly cloudy, with a low around 9.