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

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

42°F

6°C

Humidity 60%
Wind Speed W 8 mph
Barometer 29.91 in (1014.6 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 6 Dec 2:56 pm EST
Extended Forecast for

Glenelg MD

  • Tonight

    Tonight: Partly cloudy, with a low around 26. Light northwest wind.

    Low: 26 °F

    Partly Cloudy

  • Sunday

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

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25. Light and variable wind becoming north 5 to 10 mph after midnight. Winds could gust as high as 18 mph.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 31. North wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 31 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 15. North wind around 5 mph becoming calm in the evening.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 34.

    High: 34 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 26. Light northwest wind.
Sunday
Partly sunny, with a high near 41. Calm wind becoming south around 5 mph.
Sunday Night
Mostly cloudy, with a low around 25. Light and variable wind becoming north 5 to 10 mph after midnight. Winds could gust as high as 18 mph.
Monday
Partly sunny, with a high near 31. North wind 8 to 11 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 15. North wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Mostly cloudy, with a high near 45.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Partly sunny, with a high near 44.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Friday
A chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Glenelg MD
 39.26°N 76.96°W (Elev. 509 ft)
Last Update:
12:53 pm EST Dec 6, 2025
Forecast Valid:
3pm EST Dec 6, 2025-6pm EST Dec 13, 2025
 
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