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

53°F

12°C

Humidity 55%
Wind Speed S 5 mph
Barometer 30.23 in (1025.3 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 8 Jan 4:56 pm EST
Extended Forecast for

3 Miles SSW North Potomac MD

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. Calm wind becoming southeast around 5 mph after midnight.

    Low: 38 °F

    Mostly Cloudy

  • Friday

    Friday: Rain likely, mainly after 5pm. Increasing clouds, with a high near 56. South wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Partly Sunny
    then Rain
    Likely

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Cloudy, with a low around 48. South wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Rain Likely

  • Saturday

    Saturday: Rain. High near 56. Light and variable wind becoming east 5 to 7 mph in the morning. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 56 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 1am. Cloudy, with a low around 42. South wind 5 to 8 mph becoming northwest after midnight. Chance of precipitation is 70%.

    Low: 42 °F

    Rain Likely

  • Sunday

    Sunday: A slight chance of rain before 1pm. Partly sunny, with a high near 48. Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain

  • Sunday Night

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

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 43.

    High: 43 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. Calm wind becoming southeast around 5 mph after midnight.
Friday
Rain likely, mainly after 5pm. Increasing clouds, with a high near 56. South wind 6 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Rain likely, mainly after 1am. Cloudy, with a low around 48. South wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 56. Light and variable wind becoming east 5 to 7 mph in the morning. 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 42. South wind 5 to 8 mph becoming northwest after midnight. Chance of precipitation is 70%.
Sunday
A slight chance of rain before 1pm. Partly sunny, with a high near 48. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 43.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 33.
Wednesday
Mostly cloudy, with a high near 48.
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 39.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW North Potomac MD
 39.05°N 77.26°W (Elev. 220 ft)
Last Update:
3:53 pm EST Jan 8, 2026
Forecast Valid:
5pm 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