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

22°C

72°F

Humidity 52%
Wind Speed NW 17 G 26 km/h
Barometer 1011.7 mb (29.85 in)
Dewpoint 12°C (53°F)
Visibility 16 km
Last update 15 Jun 4:56 pm EDT
Extended Forecast for

Gaithersburg MD

  • Tonight

    Tonight: Mostly clear, with a low around 13. Northwest wind 13 to 18 km/h becoming light north after midnight. Winds could gust as high as 32 km/h.

    Low: 13 °C

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 26. Calm wind.

    High: 26 °C

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 16. Calm wind.

    Low: 16 °C

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 29. Southwest wind 5 to 11 km/h.

    High: 29 °C

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 19. Calm wind.

    Low: 19 °C

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 33. Chance of precipitation is 40%.

    High: 33 °C

    Slight Chance
    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.

    Low: 19 °C

    Showers
    Likely

  • Juneteenth

    Juneteenth: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 27. Chance of precipitation is 50%.

    High: 27 °C

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 16.

    Low: 16 °C

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 13. Northwest wind 13 to 18 km/h becoming light north after midnight. Winds could gust as high as 32 km/h.
Tuesday
Sunny, with a high near 26. Calm wind.
Tuesday Night
Increasing clouds, with a low around 16. Calm wind.
Wednesday
Mostly sunny, with a high near 29. Southwest wind 5 to 11 km/h.
Wednesday Night
Partly cloudy, with a low around 19. Calm wind.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 33. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 19. Chance of precipitation is 60%.
Juneteenth
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 27. Chance of precipitation is 50%.
Friday Night
Partly cloudy, with a low around 16.
Saturday
Sunny, with a high near 27.
Saturday Night
Mostly clear, with a low around 15.
Sunday
Mostly sunny, with a high near 29.
Sunday Night
A chance of showers. Partly cloudy, with a low around 17. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 30. 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 m)
Last Update:
4:53 pm EDT Jun 15, 2026
Forecast Valid:
5pm EDT Jun 15, 2026-6pm EDT Jun 22, 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