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

Flash Flooding Continuing Along the Gulf Coast; Dry Thunderstorms in the West

Excessive rainfall continues to produce life-threatening, locally catastrophic flash flooding along the central Gulf Coast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts Oregon, California, and the Great Basin into the weekend. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

78°F

26°C

Humidity 47%
Wind Speed NW 12 G 18 mph
Barometer 29.80 in (1010.1 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 19 Jun 3:56 pm EDT
Extended Forecast for

North Potomac MD

  • Tonight

    Tonight: Clear, with a low around 61. West wind 5 to 15 mph, with gusts as high as 24 mph.

    Low: 61 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 83. West wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. Northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 86. West wind 3 to 7 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 67. Light and variable wind. Chance of precipitation is 20%.

    Low: 67 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. High near 87. Chance of precipitation is 90%.

    High: 87 °F

    Showers
    Likely then
    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 64. Chance of precipitation is 80%.

    Low: 64 °F

    Showers then
    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Tonight
Clear, with a low around 61. West wind 5 to 15 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 83. West wind 6 to 14 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 62. Northwest wind 5 to 8 mph becoming calm in the evening.
Sunday
Sunny, with a high near 86. West wind 3 to 7 mph.
Sunday Night
A slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 67. Light and variable wind. Chance of precipitation is 20%.
Monday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 11am. High near 87. Chance of precipitation is 90%.
Monday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 64. Chance of precipitation is 80%.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Partly cloudy, with a low around 62.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
North Potomac MD
 39.09°N 77.25°W (Elev. 348 ft)
Last Update:
2:22 pm EDT Jun 19, 2026
Forecast Valid:
4pm EDT Jun 19, 2026-6pm EDT Jun 26, 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