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

70°F

21°C

Humidity 29%
Wind Speed Vrbl 5 mph
Barometer 30.29 in (1026.8 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 11 Apr 4:56 pm EDT
Extended Forecast for

2 Miles SW Lisbon MD

  • Tonight

    Tonight: Mostly clear, with a low around 41. North wind around 6 mph becoming calm in the evening.

    Low: 41 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 67. East wind 5 to 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 54. Southeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Monday

    Monday: A slight chance of showers after 2pm. Partly sunny, with a high near 81. Southwest wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 81 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 2am. Partly cloudy, with a low around 60. West wind 3 to 7 mph. Winds could gust as high as 18 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 67.

    Low: 67 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 41. North wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 67. East wind 5 to 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Increasing clouds, with a low around 54. Southeast wind around 10 mph, with gusts as high as 20 mph.
Monday
A slight chance of showers after 2pm. Partly sunny, with a high near 81. Southwest wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers before 2am. Partly cloudy, with a low around 60. West wind 3 to 7 mph. Winds could gust as high as 18 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
Mostly cloudy, with a low around 67.
Thursday
Partly sunny, with a high near 89.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Lisbon MD
 39.32°N 77.09°W (Elev. 623 ft)
Last Update:
4:53 pm EDT Apr 11, 2026
Forecast Valid:
5pm EDT Apr 11, 2026-6pm EDT Apr 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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