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Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

38°F

3°C

Humidity 76%
Wind Speed SE 7 mph
Barometer 30.06 in (1019.6 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 17 Jan 4:56 pm EST
Extended Forecast for

Potomac MD

  • Tonight

    Tonight: Rain likely, possibly mixed with snow, mainly after 5am. Increasing clouds, with a low around 31. Light and variable wind. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 31 °F

    Partly Cloudy
    then
    Rain/Snow
    Likely

  • Sunday

    Sunday: Snow likely, possibly mixed with rain, becoming all snow after 9am. Cloudy, with a high near 34. Northwest wind 5 to 8 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.

    High: 34 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 19. Northwest wind around 6 mph becoming calm in the evening.

    Low: 19 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 37. West wind 5 to 13 mph, with gusts as high as 22 mph.

    High: 37 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14. Northwest wind around 10 mph, with gusts as high as 18 mph.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 27.

    High: 27 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 13.

    Low: 13 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain likely, possibly mixed with snow, mainly after 5am. Increasing clouds, with a low around 31. Light and variable wind. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
Snow likely, possibly mixed with rain, becoming all snow after 9am. Cloudy, with a high near 34. Northwest wind 5 to 8 mph. Chance of precipitation is 70%. New snow accumulation of around an inch possible.
Sunday Night
Partly cloudy, with a low around 19. Northwest wind around 6 mph becoming calm in the evening.
M.L.King Day
Sunny, with a high near 37. West wind 5 to 13 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 14. Northwest wind around 10 mph, with gusts as high as 18 mph.
Tuesday
Sunny, with a high near 27.
Tuesday Night
Mostly clear, with a low around 13.
Wednesday
Mostly sunny, with a high near 37.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 41.
Thursday Night
Mostly clear, with a low around 21.
Friday
Mostly sunny, with a high near 36.
Friday Night
Partly cloudy, with a low around 26.
Saturday
A chance of rain and snow. Partly sunny, with a high near 38. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Potomac MD
 39.02°N 77.2°W (Elev. 381 ft)
Last Update:
3:53 pm EST Jan 17, 2026
Forecast Valid:
5pm EST Jan 17, 2026-6pm EST Jan 24, 2026
 
Forecast Discussion
 
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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