Current conditions at
Gaithersburg - Montgomery County Airport (KGAI)
Lat: 39.17°NLon: 77.17°WElev: 495ft.
Fair
81°F
27°C
| Humidity | 61% |
| Wind Speed | Vrbl 3 mph |
| Barometer | 30.19 in (1023.2 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 15 Aug 10:56 am EDT |
Extended Forecast for
Ashton-Sandy Spring MD
Today
High: 86 °F
Mostly Sunny
Tonight
Low: 70 °F
Mostly Cloudy
then Chance
ShowersSunday
High: 82 °F
Showers then
T-stormsSunday Night
Low: 71 °F
Showers
Monday
High: 86 °F
Mostly Sunny
Monday Night
Low: 67 °F
Mostly Clear
Tuesday
High: 84 °F
Sunny
Tuesday Night
Low: 66 °F
Mostly Clear
Wednesday
High: 86 °F
Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 86. Light east wind.
Tonight
A chance of showers, with thunderstorms also possible after 5am. Mostly cloudy, with a low around 70. Light southeast wind. Chance of precipitation is 30%.
Sunday
Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. High near 82. South wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am. Low around 71. South wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Mostly sunny, with a high near 86. Northwest wind 7 to 9 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Mostly clear, with a low around 66.
Wednesday
Sunny, with a high near 86.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 70. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Friday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 20%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Ashton-Sandy Spring MD
39.15°N 77.01°W (Elev. 449 ft)
39.15°N 77.01°W (Elev. 449 ft)
10:53 am EDT Aug 15, 2026
11am EDT Aug 15, 2026-6pm EDT Aug 21, 2026
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