Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast across parts of the Upper Midwest into the Great Lakes, the Northeast, and the central High Plains. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

A Few Clouds

75°F

24°C

Humidity	74%
Wind Speed	S 7 mph
Barometer	30.05 in (1017.2 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Last update	1 Jul 6:52 am EDT

More Information:

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

Extended Forecast for

2 Miles NNW Tysons Corner VA

Extreme Heat Watch July 2, 11:00am until July 3, 08:00pm

Heat Advisory July 1, 11:00am until July 1, 08:00pm

Click here for hazard details and duration

Extreme Heat Watch

Heat Advisory

Today
High: 99 °F
Hot
Tonight
Low: 78 °F
Mostly Clear
Thursday
High: 102 °F
Hot
Thursday Night
Low: 80 °F
Clear
Friday
High: 103 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 79 °F
Chance
T-storms
Independence Day
High: 99 °F
Sunny then
Chance
T-storms
Saturday Night
Low: 76 °F
Chance
T-storms
Sunday
High: 98 °F
Mostly Sunny
then Chance
T-storms

Detailed Forecast

Today

Sunny and hot, with a high near 99. Heat index values as high as 108. Southwest wind 5 to 8 mph.

Tonight

Mostly clear, with a low around 78. South wind around 8 mph, with gusts as high as 18 mph.

Thursday

Sunny and hot, with a high near 102. Heat index values as high as 110. Calm wind becoming southwest around 6 mph in the afternoon.

Thursday Night

Clear, with a low around 80. West wind 3 to 5 mph.

Friday

A slight chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 103. Northwest wind 3 to 6 mph. Chance of precipitation is 20%.

Friday Night

A chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 79. Chance of precipitation is 30%.

Independence Day

A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 99. Chance of precipitation is 40%.

Saturday Night

A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 40%.

Sunday

A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Chance of precipitation is 50%.

Sunday Night

A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 74. Chance of precipitation is 50%.

Monday

A chance of showers and thunderstorms. Partly sunny, with a high near 93. Chance of precipitation is 50%.

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.

Tuesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 40%.