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

21°C

70°F

Humidity 29%
Wind Speed Vrbl 7 km/h
Barometer 1026.8 mb (30.29 in)
Dewpoint 2°C (36°F)
Visibility 16 km
Last update 11 Apr 4:56 pm EDT
Extended Forecast for

2 Miles NNW Potomac MD

  • Tonight

    Tonight: Mostly clear, with a low around 7. North wind 5 to 10 km/h becoming calm in the evening.

    Low: 7 °C

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 21. East wind 10 to 16 km/h becoming south in the afternoon. Winds could gust as high as 32 km/h.

    High: 21 °C

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 14. Southeast wind 14 to 16 km/h, with gusts as high as 32 km/h.

    Low: 14 °C

    Increasing
    Clouds

  • Monday

    Monday: Partly sunny, with a high near 29. Southwest wind 18 to 21 km/h, with gusts as high as 42 km/h.

    High: 29 °C

    Partly Sunny

  • Monday Night

    Monday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 17. West wind 5 to 13 km/h, with gusts as high as 32 km/h. Chance of precipitation is 20%.

    Low: 17 °C

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 31.

    High: 31 °C

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 19.

    Low: 19 °C

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 33.

    High: 33 °C

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21.

    Low: 21 °C

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 7. North wind 5 to 10 km/h becoming calm in the evening.
Sunday
Sunny, with a high near 21. East wind 10 to 16 km/h becoming south in the afternoon. Winds could gust as high as 32 km/h.
Sunday Night
Increasing clouds, with a low around 14. Southeast wind 14 to 16 km/h, with gusts as high as 32 km/h.
Monday
Partly sunny, with a high near 29. Southwest wind 18 to 21 km/h, with gusts as high as 42 km/h.
Monday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 17. West wind 5 to 13 km/h, with gusts as high as 32 km/h. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 31.
Tuesday Night
Partly cloudy, with a low around 19.
Wednesday
Mostly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Partly sunny, with a high near 33.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 19. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 29. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 17. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 31. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Potomac MD
 39.04°N 77.2°W (Elev. 397 m)
Last Update:
4:53 pm EDT Apr 11, 2026
Forecast Valid:
5pm EDT Apr 11, 2026-6pm EDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation