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

34°F

1°C

Humidity 42%
Wind Speed Vrbl 3 mph
Barometer 29.77 in (1010.2 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Last update 2 Jan 2:56 pm EST
Extended Forecast for

Gaithersburg MD

  • Tonight

    Tonight: Increasing clouds, with a low around 24. Northwest wind around 6 mph.

    Low: 24 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly cloudy, with a high near 35. Light northwest wind.

    High: 35 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A slight chance of snow before 1am. Mostly cloudy, with a low around 26. Calm wind. Chance of precipitation is 20%.

    Low: 26 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: Sunny, with a high near 38. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 38 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. Northwest wind around 6 mph becoming calm after midnight.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 37.

    High: 37 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 24. Northwest wind around 6 mph.
Saturday
Mostly cloudy, with a high near 35. Light northwest wind.
Saturday Night
A slight chance of snow before 1am. Mostly cloudy, with a low around 26. Calm wind. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 38. Light northwest wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 22. Northwest wind around 6 mph becoming calm after midnight.
Monday
Mostly cloudy, with a high near 37.
Monday Night
Mostly cloudy, with a low around 30.
Tuesday
Mostly cloudy, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
Mostly cloudy, with a high near 52.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Friday
A chance of rain. Mostly cloudy, with a high near 59. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gaithersburg MD
 39.15°N 77.21°W (Elev. 443 ft)
Last Update:
12:53 pm EST Jan 2, 2026
Forecast Valid:
3pm EST Jan 2, 2026-6pm EST Jan 9, 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