National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms and Flash Flooding Possible Through the Holiday Weekend

Severe thunderstorms, heavy rainfall, and additional flash flooding will remain possible across much of the central U.S. and into parts of the Ohio Valley and Mid Atlantic through Monday. Elsewhere, cool and unsettled weather will persist over the West, while record high temperatures are expected in the Southeast. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

A Few Clouds

77°F

25°C

Humidity 54%
Wind Speed S 13 G 17 mph
Barometer 30.17 in (1024.1 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 25 May 12:56 pm EDT
Extended Forecast for

Gaithersburg MD

  • This
    Afternoon

    This Afternoon: Scattered thunderstorms after 5pm. Partly sunny, with a high near 82. South wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Scattered
    T-storms

    High: 82 °F

  • Tonight

    Tonight: Scattered showers and thunderstorms before 2am, then a slight chance of showers. Patchy fog between 2am and 5am. Otherwise, mostly cloudy, with a low around 67. South wind 6 to 10 mph. Chance of precipitation is 40%.

    Scattered
    T-storms then
    Scattered
    Showers and
    Patchy Fog

    Low: 67 °F

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Patchy fog between 8am and 11am. Otherwise, partly sunny, with a high near 88. West wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.

    Patchy Fog
    then Chance
    T-storms

    High: 88 °F

  • Sunday
    Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Northwest wind 5 to 9 mph becoming light after midnight. Chance of precipitation is 50%.

    Chance
    T-storms then
    Chance
    Showers

    Low: 67 °F

  • Memorial
    Day

    Memorial Day: A chance of showers and thunderstorms. Partly sunny, with a high near 82. North wind 3 to 6 mph. Chance of precipitation is 40%.

    Chance
    Showers then
    Chance
    T-storms

    High: 82 °F

  • Monday
    Night

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

    Chance
    T-storms then
    Chance
    Showers

    Low: 66 °F

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 88. Chance of precipitation is 30%.

    Chance
    Showers then
    Chance
    T-storms

    High: 88 °F

  • Tuesday
    Night

    Tuesday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.

    Chance
    T-storms then
    Mostly Clear

    Low: 70 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 93.

    Mostly Sunny

    High: 93 °F

Detailed Forecast

This Afternoon
Scattered thunderstorms after 5pm. Partly sunny, with a high near 82. South wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms before 2am, then a slight chance of showers. Patchy fog between 2am and 5am. Otherwise, mostly cloudy, with a low around 67. South wind 6 to 10 mph. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms after 2pm. Patchy fog between 8am and 11am. Otherwise, partly sunny, with a high near 88. West wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Northwest wind 5 to 9 mph becoming light after midnight. Chance of precipitation is 50%.
Memorial Day
A chance of showers and thunderstorms. Partly sunny, with a high near 82. North wind 3 to 6 mph. Chance of precipitation is 40%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Tuesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 88. Chance of precipitation is 30%.
Tuesday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 93.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Thursday Night
A chance of thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 81.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Gaithersburg MD
 39.13°N 77.21°W (Elev. 404 ft)
Last Update:
10:30 am EDT May 25, 2019
Forecast Valid:
1pm EDT May 25, 2019-6pm EDT May 31, 2019
 
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