Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

70°F

21°C

Humidity 73%
Wind Speed NE 7 mph
Barometer 30.06 in (1017.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 21 Sep 9:52 am EDT
Extended Forecast for

Dulles VA

  • Today

    Today: Scattered showers, mainly between 1pm and 5pm.  Mostly cloudy, with a high near 74. Northeast wind around 7 mph.  Chance of precipitation is 30%.

    High: 74 °F

    Mostly Cloudy
    then
    Scattered
    Showers

  • Tonight

    Tonight: Showers, with thunderstorms also possible after 2am.  Low around 60. Northeast wind around 8 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Showers

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm.  High near 64. Northeast wind 10 to 13 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 64 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers.  Low around 55. Northeast wind 11 to 13 mph, with gusts as high as 22 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Showers

  • Wednesday

    Wednesday: Showers likely, mainly before 8am.  Cloudy, with a high near 62. Northeast wind around 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%.

    High: 62 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers.  Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers.  Mostly cloudy, with a high near 62. Chance of precipitation is 20%.

    High: 62 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Friday

    Friday: A slight chance of showers after 2pm.  Mostly sunny, with a high near 64. Chance of precipitation is 20%.

    High: 64 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

Detailed Forecast

Today
Scattered showers, mainly between 1pm and 5pm. Mostly cloudy, with a high near 74. Northeast wind around 7 mph. Chance of precipitation is 30%.
Tonight
Showers, with thunderstorms also possible after 2am. Low around 60. Northeast wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers and possibly a thunderstorm. High near 64. Northeast wind 10 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Showers. Low around 55. Northeast wind 11 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, mainly before 8am. Cloudy, with a high near 62. Northeast wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Thursday
A slight chance of showers. Mostly cloudy, with a high near 62. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
A slight chance of showers after 2pm. Mostly sunny, with a high near 64. Chance of precipitation is 20%.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 20%.
Saturday
A slight chance of showers. Partly sunny, with a high near 65. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Dulles VA
 38.92°N 77.36°W (Elev. 400 ft)
9:45 am EDT Sep 21, 2026
10am EDT Sep 21, 2026-6pm EDT Sep 27, 2026
 
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Additional Resources

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