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.

Partly Cloudy

91°F

33°C

Humidity 49%
Wind Speed SE 3 mph
Barometer 30.09 in (1019.8 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 16 Aug 3:56 pm EDT
Extended Forecast for

Damascus MD

  • Tonight

    Tonight: Mostly clear, with a low around 70. South wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 92. Calm wind becoming west around 5 mph in the afternoon.

    High: 92 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 70. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: A slight chance of showers after 2pm. Partly sunny, with a high near 82. Northeast wind around 8 mph. Chance of precipitation is 20%.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers. Mostly cloudy, with a low around 66. East wind 5 to 7 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 20%.

    High: 82 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.

    High: 83 °F

    Partly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 70. South wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 92. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 70. Calm wind becoming north around 6 mph after midnight. Chance of precipitation is 20%.
Monday
A slight chance of showers after 2pm. Partly sunny, with a high near 82. Northeast wind around 8 mph. Chance of precipitation is 20%.
Monday Night
A slight chance of showers. Mostly cloudy, with a low around 66. East wind 5 to 7 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 20%.
Tuesday Night
A chance of showers between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 78.
Thursday Night
Mostly cloudy, with a low around 64.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Damascus MD
 39.26°N 77.19°W (Elev. 548 ft)
Last Update:
1:29 pm EDT Aug 16, 2025
Forecast Valid:
4pm EDT Aug 16, 2025-6pm EDT Aug 23, 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