Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

64°F

18°C

Humidity 43%
Wind Speed NE 3 mph
Barometer 29.89 in (1013.5 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 21 Mar 6:56 pm EDT
Extended Forecast for

3 Miles W North Potomac MD

  • Tonight

    Tonight: Partly cloudy, with a low around 48. Light and variable wind becoming southeast around 6 mph in the evening.

    Low: 48 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 82. South wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am.  Low around 49. Southwest wind 7 to 9 mph becoming north after midnight.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers before 8am, then a slight chance of rain between 8am and 2pm.  High near 56. Northwest wind 14 to 16 mph, with gusts as high as 26 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Showers then
    Slight Chance
    Rain

  • Monday Night

    Monday Night: Mostly clear, with a low around 33. North wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 48. Light and variable wind becoming southeast around 6 mph in the evening.
Sunday
Partly sunny, with a high near 82. South wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 49. Southwest wind 7 to 9 mph becoming north after midnight. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers before 8am, then a slight chance of rain between 8am and 2pm. High near 56. Northwest wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Mostly clear, with a low around 33. North wind 7 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 60.
Wednesday Night
Mostly cloudy, with a low around 43.
Thursday
Partly sunny, with a high near 66.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Friday
A chance of rain. Partly sunny, with a high near 57. Chance of precipitation is 30%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W North Potomac MD
 39.1°N 77.31°W (Elev. 348 ft)
6:07 pm EDT Mar 21, 2026
7pm EDT Mar 21, 2026-6pm EDT Mar 28, 2026
 
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Additional Resources

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