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

87°F

31°C

Humidity 67%
Wind Speed W 9 mph
Barometer 29.90 in (1013.3 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 17 Aug 12:56 pm EDT
Extended Forecast for

Damascus MDSimilar City Names

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 86. West wind around 9 mph. Chance of precipitation is 30%.

    High: 86 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 69. Light northwest wind. Chance of precipitation is 30%.

    Low: 69 °F

    Scattered
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 83. North wind 5 to 7 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. Calm wind becoming west around 6 mph in the afternoon.

    High: 84 °F

    Sunny

  • Wednesday Night

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

    Low: 68 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 60%.

    High: 82 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, 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 chance of showers, mainly after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 50%.

    High: 79 °F

    Slight Chance
    Showers then
    Chance
    Showers

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 86. West wind around 9 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms, mainly before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 69. Light northwest wind. Chance of precipitation is 30%.
Tuesday
Sunny, with a high near 83. North wind 5 to 7 mph.
Tuesday Night
Mostly clear, with a low around 65. Calm wind.
Wednesday
Sunny, with a high near 84. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 68. Chance of precipitation is 20%.
Thursday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Friday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Sunday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 20%.
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ABOUT THIS FORECAST

 
Point Forecast:
Damascus MDSimilar City Names
 39.29°N 77.22°W (Elev. 764 ft)
Last Update:
1:26 pm EDT Aug 17, 2026
Forecast Valid:
1pm EDT Aug 17, 2026-6pm EDT Aug 23, 2026
 
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Additional Resources

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Chance of Precipitation