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.

Light Rain Fog/Mist

66°F

19°C

Humidity	90%
Wind Speed	NE 8 mph
Barometer	30.05 in (1017.3 mb)
Dewpoint	63°F (17°C)
Visibility	6.00 mi
Last update	21 Sep 5:52 pm EDT

More Information:

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

Extended Forecast for

Tysons Corner VA

Tonight
Low: 61 °F
Chance
Showers then
Showers
Tuesday
High: 64 °F
Showers and
Patchy Fog
Tuesday Night
Low: 55 °F
Showers and
Patchy Fog
Wednesday
High: 64 °F
Rain Likely
Wednesday Night
Low: 54 °F
Chance Rain
Thursday
High: 66 °F
Partly Sunny
Thursday Night
Low: 51 °F
Mostly Cloudy
Friday
High: 65 °F
Mostly Sunny
Friday Night
Low: 52 °F
Partly Cloudy

Detailed Forecast

Tonight

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 61. East wind around 9 mph, with gusts as high as 18 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday

Showers and possibly a thunderstorm. Patchy fog. High near 64. Northeast wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

Tuesday Night

Showers before 2am, then rain, mainly after 2am. Patchy fog before 2am. Low around 55. Northeast wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

Wednesday

Rain likely, mainly before 2pm. Cloudy, with a high near 64. Northeast wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday Night

A chance of rain, mainly before 8pm. Cloudy, with a low around 54. Northeast wind 11 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Thursday

Partly sunny, with a high near 66.

Thursday Night

Mostly cloudy, with a low around 51.

Friday

Mostly sunny, with a high near 65.

Friday Night

Partly cloudy, with a low around 52.

Saturday

Mostly sunny, with a high near 67.

Saturday Night

Partly cloudy, with a low around 53.