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

43°F

6°C

Humidity 86%
Wind Speed E 3 mph
Barometer 30.26 in (1026.7 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 8 Jan 7:56 pm EST
Extended Forecast for

Clarksburg MD

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. South wind 3 to 7 mph.

    Low: 38 °F

    Mostly Cloudy

  • Friday

    Friday: Rain likely, mainly after 4pm. Increasing clouds, with a high near 54. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 54 °F

    Partly Sunny
    then Rain
    Likely

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Cloudy, with a low around 47. South wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Rain Likely

  • Saturday

    Saturday: Rain. High near 54. Northeast wind 5 to 7 mph becoming east in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 54 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 1am. Cloudy, with a low around 40. Southeast wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 60%.

    Low: 40 °F

    Rain Likely

  • Sunday

    Sunday: A slight chance of rain before 1pm. Partly sunny, with a high near 47. Chance of precipitation is 20%.

    High: 47 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 41.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. South wind 3 to 7 mph.
Friday
Rain likely, mainly after 4pm. Increasing clouds, with a high near 54. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain likely, mainly after 1am. Cloudy, with a low around 47. South wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 54. Northeast wind 5 to 7 mph becoming east in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain likely, mainly before 1am. Cloudy, with a low around 40. Southeast wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 60%.
Sunday
A slight chance of rain before 1pm. Partly sunny, with a high near 47. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 29.
Monday
Mostly sunny, with a high near 41.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 38.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clarksburg MD
 39.22°N 77.25°W (Elev. 505 ft)
Last Update:
6:53 pm EST Jan 8, 2026
Forecast Valid:
8pm EST Jan 8, 2026-6pm EST Jan 15, 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