Severe Thunderstorms and Flooding Threat in the Central U.S.; Rip Currents Along East Coast Beaches

Widespread thunderstorms will continue across the central and southern Plains today ahead of an approaching cold front. Heavy to excessive rainfall could lead to instances of flash flooding. Flood Watches have been issued. Swells from Hurricane Gabrielle are likely to cause life-threatening surf and rip current conditions along the U.S. East Coast over the next couple of days. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

76°F

24°C

Humidity	67%
Wind Speed	S 7 mph
Barometer	30.03 in (1016.5 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	23 Sep 10:52 am EDT

More Information:

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

Extended Forecast for

Great Falls VA

Today
High: 85 °F
Heavy Rain
Tonight
Low: 64 °F
Chance
T-storms then
Mostly Cloudy
Wednesday
High: 79 °F
Mostly Cloudy
then Chance
Showers
Wednesday Night
Low: 67 °F
Showers
Likely
Thursday
High: 80 °F
Chance
Showers then
Showers
Thursday Night
Low: 66 °F
Showers
Friday
High: 76 °F
Chance
Showers
Friday Night
Low: 62 °F
Chance
Showers
Saturday
High: 77 °F
Chance
Showers

Detailed Forecast

Today

A chance of showers and thunderstorms, mainly after 3pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 85. Southwest wind around 7 mph. Chance of precipitation is 30%.

Tonight

A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 11pm. Mostly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

Wednesday

A chance of showers after 2pm. Mostly cloudy, with a high near 79. Light northwest wind. Chance of precipitation is 30%.

Wednesday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Cloudy, with a low around 67. South wind 3 to 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 80. Southwest wind 6 to 8 mph. Chance of precipitation is 80%.

Thursday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 66. Chance of precipitation is 80%.

Friday

A chance of showers. Mostly cloudy, with a high near 76. Chance of precipitation is 50%.

Friday Night

A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.

Saturday

A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 40%.

Saturday Night

Partly cloudy, with a low around 61.

Sunday

Mostly sunny, with a high near 78.