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

34°F

1°C

Humidity 56%
Wind Speed Calm
Barometer 30.15 in (1022.9 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 12 Jan 8:56 pm EST
Extended Forecast for

3 Miles WNW North Potomac MD

  • Tonight

    Tonight: Mostly clear, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49. Calm wind becoming south 5 to 9 mph in the morning.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain. Cloudy, with a high near 50. South wind around 6 mph. Chance of precipitation is 40%.

    High: 50 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 27. Light and variable wind becoming northwest 6 to 11 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

    Low: 27 °F

    Rain Likely

  • Thursday

    Thursday: A slight chance of snow before 1pm. Partly sunny, with a high near 33. Chance of precipitation is 20%.

    High: 33 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 27. Calm wind.
Tuesday
Mostly sunny, with a high near 49. Calm wind becoming south 5 to 9 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 39. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday
A chance of rain. Cloudy, with a high near 50. South wind around 6 mph. Chance of precipitation is 40%.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 27. Light and variable wind becoming northwest 6 to 11 mph in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 60%.
Thursday
A slight chance of snow before 1pm. Partly sunny, with a high near 33. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 17.
Friday
Mostly sunny, with a high near 33.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Mostly sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 23.
Sunday
Partly sunny, with a high near 32.
Sunday Night
Partly cloudy, with a low around 15.
M.L.King Day
Mostly sunny, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW North Potomac MD
 39.12°N 77.3°W (Elev. 331 ft)
Last Update:
9:31 pm EST Jan 12, 2026
Forecast Valid:
9pm EST Jan 12, 2026-6pm EST Jan 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