Severe Thunderstorms in the Central U.S.; Record Temperatures Likely for Eastern U.S.

Several rounds of severe thunderstorms and heavy rain are forecast from the southern Plains to the Midwest through Friday. Large hail, damaging wind gusts, and tornadoes are possible. A significant warm-up is expected for much of the Eastern U.S. into next week. Several daily record temperature records are likely to be broken. Fire weather concerns will return to the central/southern High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fog

48°F

9°C

Humidity	96%
Wind Speed	Calm
Barometer	30.18 in (1022.0 mb)
Dewpoint	47°F (8°C)
Visibility	0.25 mi
Last update	5 Mar 8:52 am EST

More Information:

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

Extended Forecast for

Great Falls VA

Dense Fog Advisory March 5, 09:48am until March 5, 10:00am

Click here for hazard details and duration

...

Dense Fog Advisory March 5, 09:48am until March 5, 10:00am
NOW until 10:00am Thu
Dense Fog Advisory
Today
High: 63 °F
Areas Dense
Fog then
Scattered
Showers
Tonight
Low: 47 °F
Showers
Likely and
Patchy Fog
Friday
High: 55 °F
Areas Fog
then Isolated
Showers
Friday Night
Low: 46 °F
Slight Chance
Showers and
Patchy Fog
Saturday
High: 75 °F
Patchy Fog
then Chance
Showers
Saturday Night
Low: 59 °F
Showers
Likely
Sunday
High: 68 °F
Chance
Showers
Sunday Night
Low: 49 °F
Partly Cloudy

Detailed Forecast

Today

Scattered showers and thunderstorms, mainly after 5pm. Areas of dense fog before noon. Otherwise, mostly cloudy, with a high near 63. Calm wind becoming east 5 to 7 mph in the afternoon. Chance of precipitation is 30%.

Tonight

Showers and thunderstorms likely before 10pm, then scattered showers between 10pm and 3am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 47. East wind 5 to 7 mph becoming calm after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Isolated showers after 1pm. Areas of fog before noon. Otherwise, mostly cloudy, with a high near 55. East wind 3 to 7 mph. Chance of precipitation is 20%.

Friday Night

A slight chance of showers before 1am. Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 46. Southeast wind 5 to 7 mph. Chance of precipitation is 20%.

Saturday

A chance of showers after 1pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 75. South wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

Saturday Night

Showers likely, mainly before 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

Sunday

A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 30%.

Sunday Night

Partly cloudy, with a low around 49.

Monday

Mostly sunny, with a high near 70.

Monday Night

Mostly clear, with a low around 52.

Tuesday

Mostly sunny, with a high near 78.