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

79°F

26°C

Humidity 47%
Wind Speed S 5 mph
Barometer 29.94 in (1014.5 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 15 Apr 9:56 pm EDT
Extended Forecast for

Clarksburg MD

  • Tonight

    Tonight: Partly cloudy, with a low around 66. Southwest wind 3 to 7 mph.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 88. Southwest wind 3 to 8 mph.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 65. West wind around 7 mph. Chance of precipitation is 40%.

    Low: 65 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 80. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. North wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.

    High: 83 °F

    Sunny then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.

    Low: 51 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.

    High: 64 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 66. Southwest wind 3 to 7 mph.
Thursday
Mostly sunny, with a high near 88. Southwest wind 3 to 8 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 65. West wind around 7 mph. Chance of precipitation is 40%.
Friday
A chance of showers. Partly sunny, with a high near 80. Northwest wind 6 to 8 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 59. North wind around 5 mph becoming calm in the evening.
Saturday
A slight chance of showers after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 20%.
Saturday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
Sunday
A chance of showers. Mostly cloudy, with a high near 64. Chance of precipitation is 50%.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 50.
Wednesday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clarksburg MD
 39.23°N 77.28°W (Elev. 597 ft)
Last Update:
7:53 pm EDT Apr 15, 2026
Forecast Valid:
10pm EDT Apr 15, 2026-6pm EDT Apr 22, 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