Heavy Rainfall Threat for Mid-Atlantic into Southern New England; Fire Weather Hazards for the West

Heavy rain and isolated severe thunderstorms may cause flash flooding in the northern Mid-Atlantic today. The Mid-Atlantic and Southeast heatwave is slowly easing, while cooler, drier air spreads across the Central and Eastern U.S. for the start of August. Critical fire conditions persist in the Pacific Northwest and Four Corners due to dry storms and gusty winds. Read More >

Hazardous Weather Conditions

Current conditions at

Gaithersburg - Montgomery County Airport (KGAI)

Lat: 39.17°NLon: 77.17°WElev: 495ft.

Rain

73°F

23°C

Humidity NA
Wind Speed W 7 mph
Barometer 29.95 in (1015.2 mb)
Dewpoint N/A
Visibility 5.00 mi
Last update 31 Jul 6:56 pm EDT
Extended Forecast for

Clarksburg MD

  • Tonight

    Tonight: Showers and thunderstorms before 11pm, then a slight chance of showers after 5am. Some of the storms could be severe and produce heavy rainfall.  Low around 65. North wind 8 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Severe
    Thunderstorms
    then Mostly
    Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms before 3pm, then a slight chance of showers between 3pm and 5pm, then a slight chance of showers and thunderstorms after 5pm.  Mostly cloudy, with a high near 77. North wind 11 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 30%.

    High: 77 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. North wind around 8 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 80. North wind around 9 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Monday Night

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

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms before 11pm, then a slight chance of showers after 5am. Some of the storms could be severe and produce heavy rainfall. Low around 65. North wind 8 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A chance of showers and thunderstorms before 3pm, then a slight chance of showers between 3pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 77. North wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 60. North wind around 8 mph.
Saturday
Sunny, with a high near 80. North wind around 9 mph.
Saturday Night
Mostly clear, with a low around 58. Northeast wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 60.
Monday
Sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Partly sunny, with a high near 84.
Tuesday Night
Mostly cloudy, with a low around 65.
Wednesday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Clarksburg MD
 39.22°N 77.25°W (Elev. 505 ft)
4:31 pm EDT Jul 31, 2025
7pm EDT Jul 31, 2025-6pm EDT Aug 7, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database