National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

48°F

9°C

Humidity 39%
Wind Speed SW 6 mph
Barometer 29.70 in (1007.3 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 14 Jan 2:56 am EST
Extended Forecast for

Damascus MD

  • Overnight

    Overnight: Cloudy, with a low around 40. Southwest wind around 9 mph.

    Low: 40 °F

    Cloudy

  • Wednesday

    Wednesday: A chance of rain before 1pm, then a slight chance of rain after 3pm. Cloudy, with a high near 49. Southwest wind 5 to 7 mph. Chance of precipitation is 50%.

    High: 49 °F

    Chance Rain
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 3am, then a slight chance of snow between 3am and 4am. Cloudy, with a low around 22. Light and variable wind becoming northwest 10 to 15 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 27. Northwest wind 15 to 18 mph, with gusts as high as 28 mph.

    High: 27 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 16. West wind 10 to 15 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 30%.

    High: 40 °F

    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 21.

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 40. Southwest wind around 9 mph.
Wednesday
A chance of rain before 1pm, then a slight chance of rain after 3pm. Cloudy, with a high near 49. Southwest wind 5 to 7 mph. Chance of precipitation is 50%.
Wednesday Night
Rain likely before 3am, then a slight chance of snow between 3am and 4am. Cloudy, with a low around 22. Light and variable wind becoming northwest 10 to 15 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
Mostly sunny, with a high near 27. Northwest wind 15 to 18 mph, with gusts as high as 28 mph.
Thursday Night
Partly cloudy, with a low around 16. West wind 10 to 15 mph, with gusts as high as 24 mph.
Friday
Mostly sunny, with a high near 32.
Friday Night
Partly cloudy, with a low around 27.
Saturday
A chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 21.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 16.
M.L.King Day
Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 24.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Damascus MD
 39.27°N 77.22°W (Elev. 699 ft)
Last Update:
12:53 am EST Jan 14, 2026
Forecast Valid:
3am EST Jan 14, 2026-6pm EST Jan 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation