Excessive Rainfall Potential for the Southeast; Heat Expands for Center of the Nation; Critical Fire Weather for Pacific Northwest

Flash flooding threatens areas from the Tennessee Valley to the Carolinas as storms repeat along a stalled front. Monsoonal storms may trigger flooding in the Southwest. Dangerous heat expands across the Desert Southwest, Plains, mid-Mississippi Valley and Southern Tier. Critical fire weather for interior Pacific Northwest. Cooler, drier air brings brief relief to the Great Lakes and Northeast. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

79°F

26°C

Humidity	47%
Wind Speed	E 10 mph
Barometer	30.21 in (1022.6 mb)
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	24 Jul 11:52 am EDT

More Information:

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

Extended Forecast for

2 Miles ESE Great Falls VA

Today
High: 82 °F
Mostly Sunny
Tonight
Low: 64 °F
Mostly Cloudy
Saturday
High: 82 °F
Mostly Sunny
Saturday Night
Low: 65 °F
Partly Cloudy
Sunday
High: 86 °F
Mostly Sunny
Sunday Night
Low: 68 °F
Slight Chance
T-storms then
Slight Chance
Showers
Monday
High: 88 °F
Mostly Sunny
then Slight
Chance
T-storms
Monday Night
Low: 71 °F
Chance
T-storms
Tuesday
High: 88 °F
Chance
Showers then
Showers
Likely

Detailed Forecast

Today

Mostly sunny, with a high near 82. East wind 5 to 7 mph.

Tonight

Mostly cloudy, with a low around 64. Southeast wind around 6 mph becoming calm in the evening.

Saturday

Mostly sunny, with a high near 82. Calm wind becoming east around 5 mph in the afternoon.

Saturday Night

Partly cloudy, with a low around 65. Light southeast wind.

Sunday

Mostly sunny, with a high near 86. Light and variable wind.

Sunday Night

A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 68. Chance of precipitation is 20%.

Monday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 20%.

Monday Night

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

Tuesday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 88. Chance of precipitation is 60%.

Tuesday 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 69. Chance of precipitation is 60%.

Wednesday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 20%.

Wednesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 20%.

Thursday

A slight chance of showers. Sunny, with a high near 86. Chance of precipitation is 20%.