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

75°F

24°C

Humidity 45%
Wind Speed S 10 G 22 mph
Barometer 29.75 in (1008.4 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 26 Mar 7:56 pm EDT
Extended Forecast for

Gaithersburg MD

  • Tonight

    Tonight: A slight chance of rain before 3am, then a chance of rain after 4am. Increasing clouds, with a low around 49. Southwest wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    Low: 49 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain, mainly before 5pm. Temperature falling to around 49 by 4pm. North wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F⇓

    Rain

  • Friday Night

    Friday Night: A chance of rain, mainly before 8pm. Mostly cloudy, with a low around 31. North wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 31 °F

    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 46. Northwest wind around 11 mph, with gusts as high as 21 mph.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain after 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.

    Low: 51 °F

    Chance Rain

Detailed Forecast

Tonight
A slight chance of rain before 3am, then a chance of rain after 4am. Increasing clouds, with a low around 49. Southwest wind 10 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Friday
Rain, mainly before 5pm. Temperature falling to around 49 by 4pm. North wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of rain, mainly before 8pm. Mostly cloudy, with a low around 31. North wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 46. Northwest wind around 11 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 31. Calm wind.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Partly sunny, with a high near 64.
Monday Night
A chance of rain after 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 30%.
Tuesday
A chance of rain. Partly sunny, with a high near 70. Chance of precipitation is 40%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Wednesday
A chance of rain. Partly sunny, with a high near 75. Chance of precipitation is 40%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Thursday
A chance of rain. Partly sunny, with a high near 79. Chance of precipitation is 40%.
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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:
7:54 pm EDT Mar 26, 2026
Forecast Valid:
8pm EDT Mar 26, 2026-6pm EDT Apr 2, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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