Current conditions at
Gaithersburg - Montgomery County Airport (KGAI)
Lat: 39.17°NLon: 77.17°WElev: 495ft.
Fair
78°F
26°C
| Humidity | 48% |
| Wind Speed | Vrbl 5 mph |
| Barometer | 30.10 in (1020.4 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 8.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 21 Aug 2:56 pm EDT |
Extended Forecast for
3 Miles W North Potomac MDSimilar City Names
Tonight
Low: 64 °F
Mostly Cloudy
then ShowersSaturday
High: 78 °F
Showers and
Areas FogSaturday Night
Low: 66 °F
Scattered
ShowersSunday
High: 82 °F
Mostly Sunny
Sunday Night
Low: 61 °F
Mostly Clear
Monday
High: 81 °F
Sunny
Monday Night
Low: 59 °F
Mostly Clear
Tuesday
High: 81 °F
Sunny
Tuesday Night
Low: 63 °F
Mostly Clear
Detailed Forecast
Tonight
Showers and possibly a thunderstorm between 2am and 5am, then showers after 5am. Low around 64. Light east wind. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers before 8am, then showers and possibly a thunderstorm between 8am and 2pm, then scattered showers and thunderstorms after 2pm. Areas of fog before 2pm. High near 78. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Scattered showers and thunderstorms before 11pm, then isolated showers. Mostly cloudy, with a low around 66. Light and variable wind. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 82. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 61. Northwest wind 3 to 6 mph.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Additional Forecasts and Information
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Point Forecast:
3 Miles W North Potomac MDSimilar City Names
39.1°N 77.31°W (Elev. 348 ft)
39.1°N 77.31°W (Elev. 348 ft)
2:22 pm EDT Aug 21, 2026
3pm EDT Aug 21, 2026-6pm EDT Aug 28, 2026
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