Extreme Fire Weather Concerns for the Western U.S.; Severe Weather and Flooding Threats for the Central U.S.

Extremely critical fire weather conditions are expected to develop across the Great Basin and Southwest today, and exceptionally dry and windy conditions will promote rapid wildfire spread through the weekend. Scattered severe thunderstorms and heavy rain are possible across parts of the Ozark Plateau into lower Ohio Valley and parts of the northern Rockies into adjacent Great Plains. 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.

Overcast

76°F

24°C

Humidity	82%
Wind Speed	Calm
Barometer	30.04 in (1016.9 mb)
Dewpoint	70°F (21°C)
Visibility	10.00 mi
Heat Index	77°F (25°C)
Last update	27 Jun 10:52 am EDT

More Information:

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

Extended Forecast for

3 Miles NW Mc Lean VA

Today
High: 81 °F
Showers
Likely
Tonight
Low: 68 °F
Showers
Likely and
Patchy Fog
Sunday
High: 82 °F
Scattered
Showers and
Patchy Fog
then
Scattered
T-storms
Sunday Night
Low: 68 °F
Scattered
T-storms then
Patchy Fog
Monday
High: 85 °F
Patchy Fog
then Mostly
Sunny
Monday Night
Low: 67 °F
Mostly Clear
Tuesday
High: 90 °F
Sunny
Tuesday Night
Low: 72 °F
Mostly Clear
Wednesday
High: 96 °F
Sunny

Detailed Forecast

Today

Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 81. Light southwest wind. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms likely before 4am, then isolated showers after 5am. Patchy fog after midnight. Otherwise, mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Scattered showers, with thunderstorms also possible after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming east around 5 mph. Chance of precipitation is 50%.

Sunday Night

Scattered showers and thunderstorms, mainly before 8pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 30%.

Monday

Patchy fog before 8am. Otherwise, mostly sunny, with a high near 85. Calm wind becoming east around 5 mph in the afternoon.

Monday Night

Mostly clear, with a low around 67.

Tuesday

Sunny, with a high near 90.

Tuesday Night

Mostly clear, with a low around 72.

Wednesday

Sunny, with a high near 96.

Wednesday Night

Mostly clear, with a low around 77.