Coastal Storm Impacting the Mid-Atlantic; Remaining Unseasonably Warm in the Central U.S.

A coastal storm will bring widespread rain, gusty winds, shallow coastal flooding, rip currents, large surf and possible areal flooding over the Mid-Atlantic region through Wednesday. Unseasonably warm to hot temperatures persist in the mid to upper Mississippi Valley, Ohio Valley, and into the Great Lakes and Northeast U.S. through Friday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Light Rain Fog/Mist

61°F

16°C

Humidity	93%
Wind Speed	N 10 mph
Barometer	30.15 in (1020.8 mb)
Dewpoint	59°F (15°C)
Visibility	2.00 mi
Last update	16 Sep 5:52 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles SSW Herndon VA

Tonight
Low: 59 °F
Showers
Likely
Wednesday
High: 68 °F
Showers
Likely
Wednesday Night
Low: 62 °F
Chance
Showers
Thursday
High: 81 °F
Decreasing
Clouds
Thursday Night
Low: 60 °F
Mostly Clear
Friday
High: 85 °F
Sunny
Friday Night
Low: 59 °F
Mostly Clear
Saturday
High: 79 °F
Sunny
Saturday Night
Low: 60 °F
Partly Cloudy

Detailed Forecast

Tonight

Showers and thunderstorms likely before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then a chance of showers and thunderstorms after 5am. Cloudy, with a low around 59. Northeast wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

Showers and thunderstorms likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 68. North wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night

A chance of showers before 2am. Mostly cloudy, with a low around 62. North wind 6 to 8 mph. Chance of precipitation is 30%.

Thursday

Mostly cloudy, then gradually becoming sunny, with a high near 81. North wind around 6 mph.

Thursday Night

Mostly clear, with a low around 60. Light southwest wind.

Friday

Sunny, with a high near 85.

Friday Night

Mostly clear, with a low around 59.

Saturday

Sunny, with a high near 79.