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.

Fair

31°F

-1°C

Humidity 59%
Wind Speed NW 3 mph
Barometer 30.27 in (1026.9 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 4 Dec 9:56 pm EST
Extended Forecast for

Glenwood MD

Winter Weather Advisory December 5, 04:00am until December 5, 04:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: A chance of snow, mainly after 5am. Mostly cloudy, with a low around 20. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 20 °F

    Mostly Cloudy
    then Chance
    Snow

  • Friday

    Friday: Snow likely before 11am, then a chance of snow and freezing rain. Cloudy, with a high near 31. Southeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 60%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.

    High: 31 °F

    Wintry Mix
    Likely then
    Slight Chance
    Wintry Mix

  • Friday Night

    Friday Night: Patchy fog. Otherwise, mostly cloudy, with a low around 24. Calm wind.

    Low: 24 °F

    Patchy Fog

  • Saturday

    Saturday: Partly sunny, with a high near 41. Calm wind becoming southwest around 5 mph.

    High: 41 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 16.

    Low: 16 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of snow, mainly after 5am. Mostly cloudy, with a low around 20. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Friday
Snow likely before 11am, then a chance of snow and freezing rain. Cloudy, with a high near 31. Southeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 60%. Little or no ice accumulation expected. New snow accumulation of less than a half inch possible.
Friday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 24. Calm wind.
Saturday
Partly sunny, with a high near 41. Calm wind becoming southwest around 5 mph.
Saturday Night
Partly cloudy, with a low around 25. Calm wind.
Sunday
Partly sunny, with a high near 41.
Sunday Night
Mostly cloudy, with a low around 25.
Monday
Mostly sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Mostly cloudy, with a high near 43.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Thursday
A chance of rain. Partly sunny, with a high near 42. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Glenwood MD
 39.27°N 77.02°W (Elev. 548 ft)
Last Update:
9:52 pm EST Dec 4, 2025
Forecast Valid:
10pm EST Dec 4, 2025-6pm EST Dec 11, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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