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

46°F

8°C

Humidity 42%
Wind Speed SE 6 mph
Barometer 29.82 in (1011.6 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 13 Jan 5:56 pm EST
Extended Forecast for

Clarksburg MD

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. South wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain before noon, then a chance of rain after 1pm. Cloudy, with a high near 49. Southwest wind around 6 mph. Chance of precipitation is 40%.

    High: 49 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 10pm, then rain and snow likely between 10pm and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 22. Light and variable wind becoming northwest 9 to 14 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 28. Northwest wind 14 to 18 mph, with gusts as high as 31 mph.

    High: 28 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 16. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 16 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. South wind 7 to 13 mph, with gusts as high as 23 mph.
Wednesday
A chance of rain before noon, then a chance of rain after 1pm. Cloudy, with a high near 49. Southwest wind around 6 mph. Chance of precipitation is 40%.
Wednesday Night
Rain likely before 10pm, then rain and snow likely between 10pm and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 22. Light and variable wind becoming northwest 9 to 14 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
Mostly sunny, with a high near 28. Northwest wind 14 to 18 mph, with gusts as high as 31 mph.
Thursday Night
Mostly clear, with a low around 16. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Friday
Mostly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Partly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 16.
M.L.King Day
Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 25.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clarksburg MD
 39.25°N 77.28°W (Elev. 646 ft)
Last Update:
5:51 pm EST Jan 13, 2026
Forecast Valid:
6pm EST Jan 13, 2026-6pm EST Jan 20, 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