Additional Severe Weather Concerns for the Center of the Nation; Heat Builds for the West; Critical Fire Weather for Alaska

Active hazardous weather continues for the center of the nation with more severe thunderstorms and heavy rainfall today. Heat will linger across the southern Plains, then expand westward early in the week. The combination of heat and dry conditions will fuel fire weather concerns for the Four Corners region and across interior Alaska. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Partly Cloudy

69°F

21°C

Humidity	68%
Wind Speed	NW 7 mph
Barometer	29.92 in (1012.8 mb)
Dewpoint	58°F (14°C)
Visibility	10.00 mi
Last update	21 Jun 6:52 am EDT

More Information:

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

Extended Forecast for

2 Miles S Herndon VA

Today
High: 87 °F
Isolated
Showers then
Mostly Sunny
Tonight
Low: 66 °F
Mostly Cloudy
Monday
High: 94 °F
Scattered
Showers then
Showers
Monday Night
Low: 66 °F
Showers
Tuesday
High: 83 °F
Isolated
Showers
Tuesday Night
Low: 62 °F
Mostly Clear
Wednesday
High: 84 °F
Sunny
Wednesday Night
Low: 64 °F
Mostly Clear
Thursday
High: 87 °F
Mostly Sunny
then Chance
T-storms

Detailed Forecast

Today

Isolated showers before 8am. Mostly sunny, with a high near 87. Northwest wind 5 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

Tonight

Mostly cloudy, with a low around 66. North wind around 6 mph becoming light and variable.

Monday

Scattered showers before 11am, then scattered showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 94. Southeast wind 7 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

Showers and possibly a thunderstorm before 2am, then isolated showers. Low around 66. Southwest wind 5 to 13 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Tuesday

Isolated showers before 2pm. Mostly cloudy, with a high near 83. North wind 9 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 20%.

Tuesday Night

Mostly clear, with a low around 62.

Wednesday

Sunny, with a high near 84.

Wednesday Night

Mostly clear, with a low around 64.

Thursday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 50%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.

Friday

A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.