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.

Mostly Cloudy

30°F

-1°C

Humidity 61%
Wind Speed Calm
Barometer 30.38 in (1030.9 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 29 Nov 12:56 am EST
Extended Forecast for

Damascus MD

  • Overnight

    Overnight: Clear, with a low around 25. West wind around 8 mph.

    Low: 25 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 39. Northwest wind around 6 mph becoming calm in the afternoon.

    High: 39 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 30. Calm wind becoming south 5 to 8 mph after midnight.

    Low: 30 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Rain likely, possibly mixed with snow before 1pm, then a chance of rain. Cloudy, with a high near 43. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 28. Northwest wind 8 to 11 mph, with gusts as high as 22 mph.

    Low: 28 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of snow after 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: Rain and snow, becoming all rain after 1pm. High near 36. Chance of precipitation is 90%.

    High: 36 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.

    Low: 27 °F

    Chance Rain

Detailed Forecast

Overnight
Clear, with a low around 25. West wind around 8 mph.
Saturday
Sunny, with a high near 39. Northwest wind around 6 mph becoming calm in the afternoon.
Saturday Night
Increasing clouds, with a low around 30. Calm wind becoming south 5 to 8 mph after midnight.
Sunday
Rain likely, possibly mixed with snow before 1pm, then a chance of rain. Cloudy, with a high near 43. South wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday Night
Partly cloudy, with a low around 28. Northwest wind 8 to 11 mph, with gusts as high as 22 mph.
Monday
Mostly sunny, with a high near 40.
Monday Night
A chance of snow after 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
Tuesday
Rain and snow, becoming all rain after 1pm. High near 36. Chance of precipitation is 90%.
Tuesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Partly cloudy, with a low around 26.
Thursday
Partly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 20.
Friday
Mostly cloudy, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Damascus MD
 39.29°N 77.22°W (Elev. 764 ft)
Last Update:
12:53 am EST Nov 29, 2025
Forecast Valid:
1am EST Nov 29, 2025-6pm EST Dec 5, 2025
 
Forecast Discussion
 
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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