Tracking Winter Weather and Frigid Temperatures This Weekend

Another clipper will drop into the Northern Plains and Upper Midwest into Sunday with snow and gusty winds contributing to some areas of blizzard conditions and snow squalls. Impactful snowfall will occur up and down the East Coast Sunday extending from the western Florida Panhandle to Maine. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

30°F

-1°C

Humidity 88%
Wind Speed Calm
Barometer 30.09 in (1021.1 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 17 Jan 6:56 pm EST
Extended Forecast for

Derwood MD

Winter Weather Advisory January 18, 04:00am until January 18, 06:00pm
Click here for hazard details and duration
Winter Weather Advisory
  • Tonight

    Tonight: A slight chance of snow before 2am, then a chance of rain between 2am and 4am, then rain and snow likely after 4am.  Increasing clouds, with a low around 31. Light and variable wind.  Chance of precipitation is 60%. Total nighttime snow accumulation of less than one 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 60%. New snow accumulation of 1 to 2 inches possible.

    High: 34 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 18. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 18 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 36. West wind 5 to 13 mph, with gusts as high as 23 mph.

    High: 36 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. West wind around 10 mph, with gusts as high as 20 mph.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 26.

    High: 26 °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
A slight chance of snow before 2am, then a chance of rain between 2am and 4am, then rain and snow likely after 4am. Increasing clouds, with a low around 31. Light and variable wind. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one 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 60%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
Partly cloudy, with a low around 18. Northwest wind around 6 mph becoming calm in the evening.
M.L.King Day
Sunny, with a high near 36. West wind 5 to 13 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 13. West wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 26.
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 40.
Thursday Night
Mostly clear, with a low around 20.
Friday
Mostly sunny, with a high near 35.
Friday Night
Partly cloudy, with a low around 25.
Saturday
A chance of rain and snow. Partly sunny, with a high near 38. Chance of precipitation is 30%.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Derwood MD
 39.12°N 77.13°W (Elev. 348 ft)
7:31 pm EST Jan 17, 2026
7pm EST Jan 17, 2026-6pm EST Jan 24, 2026
 
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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