National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

16°F

-9°C

Humidity 45%
Wind Speed Vrbl 3 mph
Barometer 30.62 in (1039.6 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Last update 24 Jan 9:56 pm EST
Extended Forecast for

Potomac MD

Winter Storm Warning January 24, 11:00pm until January 26, 04:00am
Click here for hazard details and duration
Winter Storm Warning

  • Tonight

    Tonight: Snow, mainly after midnight. The snow could be heavy at times. Low around 17. East wind 3 to 6 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 7 inches possible.

    Low: 17 °F

    Chance Snow
    then Heavy
    Snow

  • Sunday

    Sunday: Sleet, possibly mixed with snow, becoming all sleet after 3pm. The snow and sleet could be heavy at times. High near 26. Northeast wind 6 to 9 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 3 to 7 inches possible.

    High: 26 °F

    Snow/Sleet

  • Sunday Night

    Sunday Night: Freezing rain and sleet, becoming all freezing rain after 10pm. Low around 19. North wind around 6 mph becoming calm. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New sleet accumulation of less than a half inch possible.

    Low: 19 °F

    Wintry Mix
    then Freezing
    Rain

  • Monday

    Monday: Mostly sunny, with a high near 27. Northwest wind 10 to 17 mph, with gusts as high as 29 mph.

    High: 27 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 3. West wind 9 to 13 mph, with gusts as high as 24 mph.

    Low: 3 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 22.

    High: 22 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 4.

    Low: 4 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 22.

    High: 22 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 9.

    Low: 9 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow, mainly after midnight. The snow could be heavy at times. Low around 17. East wind 3 to 6 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 3 to 7 inches possible.
Sunday
Sleet, possibly mixed with snow, becoming all sleet after 3pm. The snow and sleet could be heavy at times. High near 26. Northeast wind 6 to 9 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 3 to 7 inches possible.
Sunday Night
Freezing rain and sleet, becoming all freezing rain after 10pm. Low around 19. North wind around 6 mph becoming calm. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New sleet accumulation of less than a half inch possible.
Monday
Mostly sunny, with a high near 27. Northwest wind 10 to 17 mph, with gusts as high as 29 mph.
Monday Night
Mostly clear, with a low around 3. West wind 9 to 13 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 22.
Tuesday Night
Partly cloudy, with a low around 4.
Wednesday
Partly sunny, with a high near 22.
Wednesday Night
Mostly cloudy, with a low around 9.
Thursday
Partly sunny, with a high near 19.
Thursday Night
Mostly clear, with a low around 6.
Friday
Mostly sunny, with a high near 20.
Friday Night
Mostly clear, with a low around 7.
Saturday
Mostly sunny, with a high near 24.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Potomac MD
 39.02°N 77.2°W (Elev. 381 ft)
Last Update:
9:53 pm EST Jan 24, 2026
Forecast Valid:
10pm EST Jan 24, 2026-6pm EST Jan 31, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation