Current conditions at
Gaithersburg - Montgomery County Airport (KGAI)
Lat: 39.17°NLon: 77.17°WElev: 495ft.
Mostly Cloudy
86°F
30°C
| Humidity | 55% |
| Wind Speed | Calm |
| Barometer | 30.19 in (1023.2 mb) |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Heat Index | 89°F (32°C) |
| Last update | 15 Aug 1:56 pm EDT |
Extended Forecast for
North Potomac MDSimilar City Names
This Afternoon

High: 87 °F
Partly Sunny
Tonight

Low: 71 °F
Increasing
CloudsSunday

High: 81 °F
Showers
Sunday Night

Low: 71 °F
Showers
LikelyMonday
High: 87 °F
Mostly Sunny
then Slight
Chance
T-stormsMonday Night

Low: 68 °F
Partly Cloudy
Tuesday

High: 84 °F
Sunny
Tuesday Night

Low: 65 °F
Mostly Clear
Wednesday

High: 87 °F
Sunny
Detailed Forecast
This Afternoon
Partly sunny, with a high near 87. Light and variable wind.
Tonight
Increasing clouds, with a low around 71. Light southeast wind.
Sunday
Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 81. South wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers and thunderstorms likely before 2am, then a chance of showers between 2am and 3am. Mostly cloudy, with a low around 71. South wind 3 to 7 mph. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Northwest wind 6 to 9 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 87.
Wednesday Night
A slight chance of showers and thunderstorms, then a chance of showers after 2am. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 30%.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
North Potomac MDSimilar City Names
39.09°N 77.25°W (Elev. 348 ft)
39.09°N 77.25°W (Elev. 348 ft)
1:55 pm EDT Aug 15, 2026
2pm EDT Aug 15, 2026-6pm EDT Aug 21, 2026


