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.

Partly Cloudy

42°F

6°C

Humidity 47%
Wind Speed Vrbl 6 G 21 mph
Barometer 30.25 in (1026.1 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 23 Mar 9:56 pm EDT
Extended Forecast for

3 Miles W North Potomac MD

  • Tonight

    Tonight: Partly cloudy, with a low around 32. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 50. North wind around 6 mph becoming calm in the afternoon.

    High: 50 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 36. Light south wind.

    Low: 36 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Partly sunny, with a high near 59. South wind 6 to 11 mph, with gusts as high as 20 mph.

    High: 59 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 48. South wind around 9 mph.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 73.

    High: 73 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Rain likely, mainly after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.

    Low: 53 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: Rain likely, mainly before 8am. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.

    High: 62 °F

    Rain Likely

  • Friday Night

    Friday Night: A chance of rain and snow before 2am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 32. Northwest wind 10 to 15 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 50. North wind around 6 mph becoming calm in the afternoon.
Tuesday Night
Increasing clouds, with a low around 36. Light south wind.
Wednesday
Partly sunny, with a high near 59. South wind 6 to 11 mph, with gusts as high as 20 mph.
Wednesday Night
Mostly cloudy, with a low around 48. South wind around 9 mph.
Thursday
Partly sunny, with a high near 73.
Thursday Night
Rain likely, mainly after 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Friday
Rain likely, mainly before 8am. Mostly cloudy, with a high near 62. Chance of precipitation is 60%.
Friday Night
A chance of rain and snow before 2am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 56.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 63.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W North Potomac MD
 39.1°N 77.31°W (Elev. 348 ft)
Last Update:
9:32 pm EDT Mar 23, 2026
Forecast Valid:
10pm EDT Mar 23, 2026-6pm EDT Mar 30, 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