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

53°F

12°C

Humidity 51%
Wind Speed SW 3 mph
Barometer 30.04 in (1018.5 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 26 Mar 7:56 am EDT
Extended Forecast for

3 Miles W North Potomac MD

  • Today

    Today: Mostly sunny, with a high near 77. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: A chance of rain and thunderstorms, mainly after 5am. Increasing clouds, with a low around 50. Southwest wind 10 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

    Low: 50 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain. Temperature falling to around 50 by 3pm. North wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 61 °F⇓

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 33. North wind 5 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 47. Northwest wind around 11 mph, with gusts as high as 21 mph.

    High: 47 °F

    Sunny

  • Saturday Night

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

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 77. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Tonight
A chance of rain and thunderstorms, mainly after 5am. Increasing clouds, with a low around 50. Southwest wind 10 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
Friday
Rain. Temperature falling to around 50 by 3pm. North wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Rain likely, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 33. North wind 5 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Sunny, with a high near 47. Northwest wind around 11 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 31.
Sunday
Sunny, with a high near 58.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Partly sunny, with a high near 64.
Monday Night
A chance of rain after 8pm. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 71. Chance of precipitation is 40%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Wednesday
A chance of rain. Partly sunny, with a high near 76. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W North Potomac MD
 39.1°N 77.31°W (Elev. 348 ft)
Last Update:
7:55 am EDT Mar 26, 2026
Forecast Valid:
8am EDT Mar 26, 2026-6pm EDT Apr 1, 2026
 
Forecast Discussion
 
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Additional Resources

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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