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

51°F

11°C

Humidity 31%
Wind Speed S 9 mph
Barometer 29.89 in (1014.0 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 13 Jan 2:56 pm EST
Extended Forecast for

Damascus MD

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.

    Low: 40 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain before noon, then a chance of rain after 1pm. Cloudy, with a high near 49. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.

    High: 49 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 10pm, then rain and snow likely between 10pm and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 22. Light and variable wind becoming northwest 9 to 14 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 22 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 27. Northwest wind 15 to 18 mph, with gusts as high as 32 mph.

    High: 27 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 16. Northwest wind 9 to 14 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Friday Night

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

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 21 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.
Wednesday
A chance of rain before noon, then a chance of rain after 1pm. Cloudy, with a high near 49. Southwest wind 5 to 7 mph. Chance of precipitation is 30%.
Wednesday Night
Rain likely before 10pm, then rain and snow likely between 10pm and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 22. Light and variable wind becoming northwest 9 to 14 mph in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday
Mostly sunny, with a high near 27. Northwest wind 15 to 18 mph, with gusts as high as 32 mph.
Thursday Night
Mostly clear, with a low around 16. Northwest wind 9 to 14 mph, with gusts as high as 24 mph.
Friday
Mostly sunny, with a high near 31.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 40.
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 30.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Mostly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Damascus MD
 39.28°N 77.19°W (Elev. 751 ft)
Last Update:
3:34 pm EST Jan 13, 2026
Forecast Valid:
3pm EST Jan 13, 2026-6pm EST Jan 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation