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

72°F

22°C

Humidity NA
Wind Speed Calm
Barometer 29.87 in (1012.4 mb)
Dewpoint N/A
Visibility 8.00 mi
Last update 18 Aug 2:56 am EDT
Extended Forecast for

Damascus MDSimilar City Names

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 82. North wind around 6 mph.

    High: 82 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 70%.

    High: 80 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before 11pm, then a chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Friday

    Friday: A slight chance of showers before 8am, then a chance of showers after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 40%.

    High: 79 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 69. Calm wind.
Tuesday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 82. North wind around 6 mph.
Tuesday Night
Mostly clear, with a low around 64. Calm wind.
Wednesday
Sunny, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 68. Calm wind. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms before 8am, then a chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely before 11pm, then a chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Friday
A slight chance of showers before 8am, then a chance of showers after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Monday
Sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Damascus MDSimilar City Names
 39.29°N 77.22°W (Elev. 764 ft)
Last Update:
3:06 am EDT Aug 18, 2026
Forecast Valid:
3am EDT Aug 18, 2026-6pm EDT Aug 24, 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