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

Air Quality Concerns; Fire Weather; Extreme Heat; Flash Flooding

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Dangerous heat and fire weather concerns for portions of the Four Corners region into the central Great Basin. Heavy rainfall and flash flooding possible for the Southeast through Monday. For Hawaii, gusty trade winds a drier weather could result in any fires that start to spread rapidly. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Fair

57°F

14°C

Humidity NA
Wind Speed Calm
Barometer 30.16 in (1022.3 mb)
Dewpoint N/A
Visibility 10.00 mi
Last update 4 Aug 4:56 am EDT
Extended Forecast for

2 Miles ESE Potomac MD

  • Today

    Today: Sunny, with a high near 87. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 66. Light and variable wind.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 86. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 86 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers after 2pm. Mostly cloudy, with a high near 83. East wind 3 to 7 mph. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 83.

    High: 83 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 87. Calm wind becoming northeast around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 66. Light and variable wind.
Tuesday
Mostly cloudy, with a high near 86. Calm wind becoming southeast around 6 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 69. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 83. East wind 3 to 7 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 83.
Thursday Night
Partly cloudy, with a low around 65.
Friday
Mostly sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 66.
Saturday
Partly sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Partly sunny, with a high near 88.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Potomac MD
 39.01°N 77.15°W (Elev. 269 ft)
Last Update:
4:29 am EDT Aug 4, 2025
Forecast Valid:
5am EDT Aug 4, 2025-6pm EDT Aug 10, 2025
 
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