National Weather Service

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Partly Cloudy

99°F

37°C

Humidity	34%
Wind Speed	SW 9 mph
Barometer	29.95 in (1013.7 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	103°F (39°C)
Last update	22 Jun 3:52 pm EDT

More Information:

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

Extended Forecast for

2 Miles S Washington-Dulles International Airport VA

Heat Advisory June 23, 11:00am until June 23, 07:00pm

Heat Advisory June 22, 04:50pm until June 22, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory June 22, 04:50pm until June 22, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
This Afternoon
High: 100 °F
Isolated
T-storms
Tonight
Low: 77 °F
Partly Cloudy
Sunday
High: 98 °F
Sunny then
Chance
T-storms
Sunday Night
Low: 72 °F
Showers
Likely
Monday
High: 89 °F
Slight Chance
Showers then
Slight Chance
T-storms
Monday Night
Low: 65 °F
Mostly Clear
Tuesday
High: 91 °F
Sunny
Tuesday Night
Low: 70 °F
Mostly Clear

Detailed Forecast

This Afternoon

Isolated showers and thunderstorms. Mostly sunny and hot, with a high near 100. Heat index values as high as 107. South wind around 8 mph. Chance of precipitation is 20%.

Tonight

Partly cloudy, with a low around 77. South wind 5 to 8 mph.

Sunday

A chance of showers and thunderstorms after 2pm. Increasing clouds and hot, with a high near 98. Heat index values as high as 107. Southwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

Sunday Night

A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. Southwest wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Monday

A slight chance of showers, with thunderstorms also possible after 2pm. Sunny, with a high near 89. Northwest wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Monday Night

Mostly clear, with a low around 65.

Tuesday

Sunny, with a high near 91.

Tuesday Night

Mostly clear, with a low around 70.

Wednesday

A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Chance of precipitation is 30%.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.

Thursday

A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 40%.