Current conditions at
Gaithersburg - Montgomery County Airport (KGAI)
Lat: 39.17°NLon: 77.17°WElev: 495ft.
Fair
84°F
29°C
| Humidity | 29% |
| Wind Speed | SW 8 mph |
| Barometer | 29.98 in (1016.3 mb) |
| Dewpoint | 48°F (9°C) |
| Visibility | 10.00 mi |
| Heat Index | 82°F (28°C) |
| Last update | 10 Mar 3:56 pm EDT |
Extended Forecast for
Potomac MD
Tonight
Low: 59 °F
Mostly Clear
Wednesday
High: 81 °F
Rain Likely
Wednesday Night
Low: 48 °F
Slight Chance
Rain then
Rain LikelyThursday
High: 52 °F
Rain Likely
and BreezyThursday Night
Low: 33 °F
Mostly Clear
Friday
High: 54 °F
Partly Sunny
Friday Night
Low: 41 °F
Partly Cloudy
Saturday
High: 56 °F
Mostly Sunny
Saturday Night
Low: 41 °F
Mostly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 59. South wind 3 to 6 mph.
Wednesday
Rain likely before 3pm, then a chance of rain after 4pm. Partly sunny, with a high near 81. South wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely, mainly after 2am. Increasing clouds, with a low around 48. Southwest wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain likely, mainly before 2pm. Cloudy, then gradually becoming mostly sunny, with a high near 52. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Mostly clear, with a low around 33. Northwest wind 5 to 9 mph becoming calm after midnight.
Friday
Partly sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Mostly cloudy, with a low around 41.
Sunday
Mostly cloudy, with a high near 66.
Sunday Night
Rain. Low around 51. Chance of precipitation is 80%.
Monday
Rain. High near 60. Chance of precipitation is 80%.
Monday Night
A chance of rain and snow. Partly cloudy, with a low around 27. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 37.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Potomac MD
39.02°N 77.2°W (Elev. 381 ft)
39.02°N 77.2°W (Elev. 381 ft)
4:54 pm EDT Mar 10, 2026
4pm EDT Mar 10, 2026-6pm EDT Mar 17, 2026
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