Thunderstorms and Heavy Rainfall in the Mid-Atlantic; Fire Weather Concerns in the West

Thunderstorms are expected to bring heavy rain and potential significant flash and urban flooding to the Mid-Atlantic on Thursday, especially along the I-95 urban corridor. Dry conditions, gusty winds, and isolated dry thunderstorms will continue to bring a critical fire weather threat to the northwestern Great Basin into the interior Northwest through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

84°F

29°C

Humidity	77%
Wind Speed	S 3 mph
Barometer	29.98 in (1015.0 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	93°F (34°C)
Last update	30 Jul 9:52 pm EDT

More Information:

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

Extended Forecast for

2 Miles W Fairfax VA

Flood Watch July 31, 02:00pm until August 1, 02:00am

Click here for hazard details and duration

Flood Watch

Tonight
Low: 76 °F
Partly Cloudy
Thursday
High: 93 °F
Mostly Sunny
then T-storms
Likely
Thursday Night
Low: 69 °F
T-storms then
Showers
Friday
High: 77 °F
Chance
Showers then
Chance
T-storms
Friday Night
Low: 63 °F
Slight Chance
T-storms then
Slight Chance
Showers
Saturday
High: 81 °F
Mostly Sunny
Saturday Night
Low: 61 °F
Mostly Clear
Sunday
High: 82 °F
Mostly Sunny
Sunday Night
Low: 61 °F
Partly Cloudy

Detailed Forecast

Tonight

Partly cloudy, with a low around 76. Light south wind.

Thursday

A slight chance of showers, then showers and thunderstorms likely after 2pm. Increasing clouds, with a high near 93. Heat index values as high as 102. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms between 2am and 5am, then a chance of showers after 5am. Low around 69. Southeast wind around 6 mph becoming north after midnight. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

Friday

A chance of showers, with thunderstorms also possible after 11am. Mostly cloudy, with a high near 77. North wind 8 to 10 mph. Chance of precipitation is 50%.

Friday Night

A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 63. North wind 7 to 9 mph. Chance of precipitation is 20%.

Saturday

Mostly sunny, with a high near 81.

Saturday Night

Mostly clear, with a low around 61.

Sunday

Mostly sunny, with a high near 82.

Sunday Night

Partly cloudy, with a low around 61.

Monday

Mostly sunny, with a high near 84.

Monday Night

Partly cloudy, with a low around 64.