Current conditions at
Gaithersburg - Montgomery County Airport (KGAI)
Lat: 39.17°NLon: 77.17°WElev: 495ft.
Partly Cloudy with Haze
85°F
29°C
| Humidity | 55% |
| Wind Speed | W 8 mph |
| Barometer | 29.98 in (1015.9 mb) |
| Dewpoint | 67°F (19°C) |
| Visibility | 6.00 mi |
| Heat Index | 88°F (31°C) |
| Last update | 19 Aug 1:56 pm EDT |
Extended Forecast for
Gaithersburg MD
This Afternoon
High: 87 °F
Sunny
Tonight
Low: 69 °F
Mostly Clear
Thursday
High: 83 °F
Showers
LikelyThursday Night
Low: 66 °F
Chance
T-storms then
Slight Chance
ShowersFriday
High: 81 °F
Partly Sunny
then Slight
Chance
ShowersFriday Night
Low: 67 °F
Showers
LikelySaturday
High: 81 °F
Showers
LikelySaturday Night
Low: 67 °F
Showers
Likely then
Chance
T-stormsSunday
High: 82 °F
Mostly Sunny
then Slight
Chance
T-storms
Detailed Forecast
This Afternoon
Sunny, with a high near 87. West wind around 7 mph.
Tonight
Mostly clear, with a low around 69. Calm wind.
Thursday
A slight chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Increasing clouds, with a high near 83. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Mostly cloudy, with a low around 66. Light north wind. Chance of precipitation is 30%.
Friday
A slight chance of showers after 2pm. Partly sunny, with a high near 81. East wind 3 to 5 mph. Chance of precipitation is 20%.
Friday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Saturday
Showers likely before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Sunday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 64.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Mostly sunny, with a high near 81.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Gaithersburg MD
39.16°N 77.24°W (Elev. 400 ft)
39.16°N 77.24°W (Elev. 400 ft)
2:23 pm EDT Aug 19, 2026
2pm EDT Aug 19, 2026-6pm EDT Aug 25, 2026
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