Flash Flood Watches in Southeast and Tennessee Valley; Critical Fire Weather in California; Severe Weather in Upper Midwest

Flash flood watches are in effect today in parts of the Southeast and Tennessee Valley from organized areas of heavy to excessive rainfall. Meanwhile, critical fire weather conditions are likely across northern California with offshore winds and dry conditions. Finally, a strong cold front will produce severe thunderstorms across the Upper to Mid Mississippi Valley. Read More >

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Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

78°F

26°C

Humidity	50%
Wind Speed	E 5 mph
Barometer	30.27 in (1024.8 mb)
Dewpoint	58°F (14°C)
Visibility	10.00 mi
Heat Index	79°F (26°C)
Last update	20 Sep 2:52 pm EDT

More Information:

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

Extended Forecast for

Chantilly VA

Tonight

Mostly Cloudy
Low: 62 °F
Tuesday

Slight Chance
Showers
High: 79 °F
Tuesday
Night

Chance
Showers
Low: 67 °F
Wednesday

Showers
Likely
High: 80 °F
Wednesday
Night

Showers
Low: 62 °F
Thursday

Showers
High: 74 °F
Thursday
Night

Showers
Likely then
Chance
Showers
Low: 56 °F
Friday

Sunny
High: 73 °F
Friday
Night

Mostly Clear
Low: 53 °F

Detailed Forecast

Tonight

Mostly cloudy, with a low around 62. East wind 3 to 7 mph.

Tuesday

A slight chance of showers. Mostly cloudy, with a high near 79. Light east wind becoming southeast 5 to 9 mph in the morning. Chance of precipitation is 20%.

Tuesday Night

A chance of showers, mainly after 2am. Mostly cloudy, with a low around 67. Southeast wind around 8 mph. Chance of precipitation is 40%.

Wednesday

Showers likely, mainly after 8am. Mostly cloudy, with a high near 80. South wind 8 to 13 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

Wednesday Night

Showers, with thunderstorms also possible after 2am. Low around 62. South wind around 10 mph becoming west after midnight. Chance of precipitation is 80%.

Thursday

Showers and possibly a thunderstorm. High near 74. Chance of precipitation is 80%.

Thursday Night

Showers likely, mainly before 8pm. Partly cloudy, with a low around 56. Chance of precipitation is 60%.

Friday

Sunny, with a high near 73.

Friday Night

Mostly clear, with a low around 53.

Saturday

Sunny, with a high near 75.

Saturday Night

Mostly clear, with a low around 55.