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

32°F

0°C

Humidity 61%
Wind Speed Calm
Barometer 30.13 in (1022.4 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 12 Mar 10:56 pm EDT
Extended Forecast for

North Potomac MD

  • Tonight

    Tonight: Mostly clear, with a low around 29. Light southwest wind.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 54. Breezy, with a south wind 7 to 12 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 38 mph.

    High: 54 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 39. Southwest wind 10 to 16 mph, with gusts as high as 30 mph.

    Low: 39 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 55. West wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39. Calm wind becoming east around 5 mph after midnight.

    Low: 39 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 59.

    High: 59 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers. Low around 53. Chance of precipitation is 90%.

    Low: 53 °F

    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. High near 68. Breezy. Chance of precipitation is 100%.

    High: 68 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 29. Chance of precipitation is 80%.

    Low: 29 °F

    Showers then
    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 29. Light southwest wind.
Friday
Increasing clouds, with a high near 54. Breezy, with a south wind 7 to 12 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 38 mph.
Friday Night
Mostly clear, with a low around 39. Southwest wind 10 to 16 mph, with gusts as high as 30 mph.
Saturday
Mostly sunny, with a high near 55. West wind 9 to 14 mph, with gusts as high as 23 mph.
Saturday Night
Mostly cloudy, with a low around 39. Calm wind becoming east around 5 mph after midnight.
Sunday
Mostly cloudy, with a high near 59.
Sunday Night
Showers. Low around 53. Chance of precipitation is 90%.
Monday
Showers, with thunderstorms also possible after 2pm. High near 68. Breezy. Chance of precipitation is 100%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 29. Chance of precipitation is 80%.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
Mostly clear, with a low around 23.
Wednesday
Sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 29.
Thursday
Mostly cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
North Potomac MD
 39.11°N 77.27°W (Elev. 400 ft)
Last Update:
10:53 pm EDT Mar 12, 2026
Forecast Valid:
11pm EDT Mar 12, 2026-6pm EDT Mar 19, 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