Heavy Rainfall and Severe Thunderstorms Possible in the Mid-Atlantic and Northeast Today; Dangerous Heat in the Southwest

Scattered severe thunderstorms containing the potential for damaging wind gusts and excessive rainfall are possible from the Mid-Atlantic to southern New England today, with additional thunderstorms and heavy rain possible across parts of the Plains and Middle Mississippi Valley. Heat and humidity remain along the East Coast and Interior Northwest, while dangerous heat builds into the Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Thunderstorm Heavy Rain

76°F

24°C

Humidity	85%
Wind Speed	SW 6 mph
Barometer	30.01 in (1016.1 mb)
Dewpoint	71°F (22°C)
Visibility	4.00 mi
Heat Index	77°F (25°C)
Last update	8 Jul 4:52 pm EDT

More Information:

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

Extended Forecast for

Reston VA

Severe T-storm Watch until July 8, 09:00pm

Flood Watch July 8, 05:52pm until July 9, 12:00am

Heat Advisory July 8, 05:52pm until July 8, 07:00pm

Click here for hazard details and duration

Severe T-storm Watch

Flood Watch

Heat Advisory

Severe T-storm Watch until July 8, 09:00pm
Flood Watch July 8, 05:52pm until July 9, 12:00am
Heat Advisory July 8, 05:52pm until July 8, 07:00pm
NOW: Multiple hazards in effect
Click HERE for Details
This Afternoon
High: 86 °F
Severe
Thunderstorms
Tonight
Low: 72 °F
Severe
Thunderstorms
then Mostly
Cloudy
Wednesday
High: 91 °F
Mostly Sunny
then T-storms
Likely
Wednesday Night
Low: 72 °F
T-storms
Likely then
Chance
Showers
Thursday
High: 87 °F
Chance
Showers then
T-storms
Likely
Thursday Night
Low: 71 °F
Showers
Likely
Friday
High: 90 °F
Partly Sunny
then Showers
Likely
Friday Night
Low: 72 °F
Showers
Likely then
Chance
T-storms

Detailed Forecast

This Afternoon

Showers and thunderstorms likely. Some of the storms could be severe. Mostly cloudy, with a steady temperature around 86. West wind around 8 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely, mainly before 11pm. Some of the storms could be severe. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

Showers and thunderstorms likely, mainly after 5pm. Increasing clouds, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Wednesday Night

Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 72. Southeast wind around 5 mph becoming light and variable after midnight. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Thursday

Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 87. South wind 3 to 5 mph. Chance of precipitation is 70%.

Thursday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

Friday

Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.

Friday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

Saturday

A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 50%.

Saturday Night

A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. Chance of precipitation is 30%.

Sunday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 89. Chance of precipitation is 60%.

Sunday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

Monday

A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 50%.

Monday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.