Current conditions at
Gaithersburg - Montgomery County Airport (KGAI)
Lat: 39.17°NLon: 77.17°WElev: 495ft.
Overcast
36°F
2°C
| Humidity | 37% |
| Wind Speed | SE 5 mph |
| Barometer | 29.99 in (1017.3 mb) |
| Dewpoint | 12°F (-11°C) |
| Visibility | 10.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 17 Jan 5:56 am EST |
Extended Forecast for
Derwood MD
Today
High: 45 °F
Wintry Mix
Likely then
Isolated
ShowersTonight
Low: 31 °F
Partly Cloudy
then Chance
Rain/SnowSunday
High: 34 °F
Chance Light
SnowSunday Night
Low: 20 °F
Partly Cloudy
M.L.King Day
High: 38 °F
Sunny
Monday Night
Low: 14 °F
Partly Cloudy
Tuesday
High: 26 °F
Sunny
Tuesday Night
Low: 14 °F
Mostly Clear
Wednesday
High: 39 °F
Mostly Sunny
Detailed Forecast
Today
Rain showers, snow showers, and sleet likely before noon, then a slight chance of rain showers between noon and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 45. South wind 6 to 9 mph becoming west in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 60%. Total daytime snow and sleet accumulation of less than a half inch possible.
Tonight
A chance of rain between 2am and 4am, then a chance of snow after 4am. Increasing clouds, with a low around 31. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 30%.
Sunday
A chance of light snow, mainly before 1pm. Cloudy, with a high near 34. Northwest wind 5 to 7 mph. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 20. Northwest wind around 6 mph becoming calm in the evening.
M.L.King Day
Sunny, with a high near 38. Southwest wind 5 to 11 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Sunny, with a high near 26.
Tuesday Night
Mostly clear, with a low around 14.
Wednesday
Mostly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
Partly sunny, with a high near 42.
Thursday Night
Mostly cloudy, with a low around 23.
Friday
Mostly sunny, with a high near 35.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Derwood MD
39.12°N 77.13°W (Elev. 348 ft)
39.12°N 77.13°W (Elev. 348 ft)
5:32 am EST Jan 17, 2026
6am EST Jan 17, 2026-6pm EST Jan 23, 2026
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