Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

77°F

25°C

Humidity	79%
Wind Speed	NE 6 mph
Barometer	30.12 in (1019.7 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	31 Aug 8:52 am EDT

More Information:

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

Extended Forecast for

2 Miles WNW Sugarland Run VA

Today
High: 90 °F
Mostly Sunny
then Slight
Chance
T-storms
Tonight
Low: 74 °F
Chance
Showers then
Partly Cloudy
Tuesday
High: 96 °F
Mostly Sunny
then Chance
Showers
Tuesday Night
Low: 76 °F
Chance
Showers then
Slight Chance
T-storms
Wednesday
High: 96 °F
Mostly Sunny
then Slight
Chance
T-storms
Wednesday Night
Low: 76 °F
Slight Chance
T-storms
Thursday
High: 97 °F
Sunny then
Slight Chance
T-storms
Thursday Night
Low: 72 °F
Chance
T-storms
Friday
High: 89 °F
Slight Chance
T-storms then
Chance
Showers

Detailed Forecast

Today

A slight chance of showers between 1pm and 2pm, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. North wind 3 to 5 mph. Chance of precipitation is 20%.

Tonight

A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 74. South wind 3 to 5 mph. Chance of precipitation is 30%.

Tuesday

A slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Heat index values as high as 103. West wind 3 to 7 mph. Chance of precipitation is 30%.

Tuesday Night

A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 76. West wind 3 to 5 mph. Chance of precipitation is 30%.

Wednesday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Light and variable wind. Chance of precipitation is 20%.

Wednesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 20%.

Thursday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Chance of precipitation is 20%.

Thursday Night

A chance of showers and thunderstorms, mainly between 8pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 30%.

Friday

A slight chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.

Friday Night

A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

Saturday

Mostly sunny, with a high near 85.

Saturday Night

Partly cloudy, with a low around 63.

Sunday

Mostly sunny, with a high near 83.