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.

Overcast

54°F

12°C

Humidity 64%
Wind Speed NW 5 mph
Barometer 29.84 in (1012.0 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 7 Jan 10:56 am EST
Extended Forecast for

4 Miles W North Potomac MD

  • Today

    Today: Mostly sunny, with a high near 57. Northwest wind 8 to 10 mph, with gusts as high as 22 mph.

    High: 57 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 34. Northwest wind around 6 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 53. Calm wind becoming south around 5 mph in the afternoon.

    High: 53 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 41. South wind 5 to 7 mph.

    Low: 41 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of rain. Cloudy, with a high near 60. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

    High: 60 °F

    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Chance Rain
    then Rain
    Likely

  • Saturday

    Saturday: Rain. High near 64. Chance of precipitation is 90%.

    High: 64 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 1am. Cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Rain Likely

  • Sunday

    Sunday: A chance of rain before 1pm. Partly sunny, with a high near 49. Chance of precipitation is 30%.

    High: 49 °F

    Chance Rain

Detailed Forecast

Today
Mostly sunny, with a high near 57. Northwest wind 8 to 10 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 34. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 53. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 41. South wind 5 to 7 mph.
Friday
A chance of rain. Cloudy, with a high near 60. South wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
Friday Night
Rain likely, mainly after 1am. Cloudy, with a low around 54. Chance of precipitation is 70%.
Saturday
Rain. High near 64. Chance of precipitation is 90%.
Saturday Night
Rain likely, mainly before 1am. Cloudy, with a low around 44. Chance of precipitation is 70%.
Sunday
A chance of rain before 1pm. Partly sunny, with a high near 49. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Sunny, with a high near 41.
Monday Night
Mostly clear, with a low around 27.
Tuesday
Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W North Potomac MD
 39.1°N 77.31°W (Elev. 348 ft)
Last Update:
9:53 am EST Jan 7, 2026
Forecast Valid:
11am EST Jan 7, 2026-6pm EST Jan 13, 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