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 with Haze

45°F

7°C

Humidity NA
Wind Speed W 5 mph
Barometer 29.84 in (1012.0 mb)
Dewpoint N/A
Visibility 4.00 mi
Wind Chill42°F (6°C)
Last update 11 Jan 1:56 am EST
Extended Forecast for

Gaithersburg MD

  • Overnight

    Overnight: Cloudy, with a low around 35. Northwest wind 6 to 11 mph, with gusts as high as 29 mph.

    Low: 35 °F

    Cloudy

  • Sunday

    Sunday: A chance of rain and snow showers between noon and 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 43. Breezy, with a west wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 50%.

    High: 43 °F

    Mostly Sunny
    then Chance
    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 28. Northwest wind 10 to 18 mph, with gusts as high as 40 mph.

    Low: 28 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 44. West wind 6 to 8 mph becoming southwest in the afternoon.

    High: 44 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 29. Light west wind.

    Low: 29 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 51.

    High: 51 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Overnight
Cloudy, with a low around 35. Northwest wind 6 to 11 mph, with gusts as high as 29 mph.
Sunday
A chance of rain and snow showers between noon and 4pm. Mostly cloudy, then gradually becoming sunny, with a high near 43. Breezy, with a west wind 6 to 11 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 50%.
Sunday Night
Mostly clear, with a low around 28. Northwest wind 10 to 18 mph, with gusts as high as 40 mph.
Monday
Sunny, with a high near 44. West wind 6 to 8 mph becoming southwest in the afternoon.
Monday Night
Partly cloudy, with a low around 29. Light west wind.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Cloudy, with a high near 51.
Wednesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 40%.
Thursday
A chance of rain before 1pm. Partly sunny, with a high near 37. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Partly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 22.
Saturday
Mostly sunny, with a high near 39.
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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 am EST Jan 11, 2026
Forecast Valid:
2am EST Jan 11, 2026-6pm EST Jan 17, 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