Flash Flood Concerns in Mid-Atlantic, Severe Weather Threats in Upper Midwest, and Fire Weather in the West

Once again, heavy rain and thunderstorms may produce flash flooding across the Mid-Atlantic region today. Flash flood watches are in effect, which includes the Philadelphia and Washington D.C. metro areas. Meanwhile, severe thunderstorms with damaging winds and large hail are possible from North Dakota into Minnesota. Finally, red flag warnings are in effect across several states in the West. Read More >

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Overcast

73°F

23°C

Humidity 94%
Wind Speed Calm
Barometer 30.11 in (1020.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 7 Aug 7:56 am EDT
Extended Forecast for

3 Miles W North Potomac MD

Flash Flood Watch August 7, 12:00pm until August 8, 02:00am
Click here for hazard details and duration
Flash Flood Watch
  • Today

    Today: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 9am. Some of the storms could produce heavy rain.  Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Heavy Rain
    and Patchy
    Fog

    High: 84 °F

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 5am. Some of the storms could produce heavy rain.  Mostly cloudy, with a low around 67. Light and variable wind.  Chance of precipitation is 50%.

    Heavy Rain

    Low: 67 °F

  • Saturday

    Saturday: Partly sunny, with a high near 87. North wind 3 to 5 mph.

    Partly Sunny

    High: 87 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 68. Calm wind.

    Partly Cloudy

    Low: 68 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 89. Calm wind.

    Mostly Sunny

    High: 89 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 69.

    Partly Cloudy

    Low: 69 °F

  • Monday

    Monday: Sunny, with a high near 90.

    Sunny

    High: 90 °F

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 72.

    Mostly Clear

    Low: 72 °F

  • Tuesday

    Tuesday: A chance of showers.  Mostly sunny, with a high near 91. Chance of precipitation is 50%.

    Chance
    Showers

    High: 91 °F

Detailed Forecast

Today
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 9am. Some of the storms could produce heavy rain. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Scattered showers and thunderstorms, mainly before 5am. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 67. Light and variable wind. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 87. North wind 3 to 5 mph.
Saturday Night
Partly cloudy, with a low around 68. Calm wind.
Sunday
Mostly sunny, with a high near 89. Calm wind.
Sunday Night
Partly cloudy, with a low around 69.
Monday
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 72.
Tuesday
A chance of showers. Mostly sunny, with a high near 91. Chance of precipitation is 50%.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
Showers likely. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Thursday
Showers likely. Mostly sunny, with a high near 88. Chance of precipitation is 60%.
Click Map For Forecast
Point Forecast:
3 Miles W North Potomac MD
 39.1°N 77.31°W (Elev. 348 ft)
8:41 am EDT Aug 7, 2020
8am EDT Aug 7, 2020-6pm EDT Aug 13, 2020
 
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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