Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. 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

73°F

23°C

Humidity	81%
Wind Speed	S 7 mph
Barometer	30.00 in (1015.4 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Last update	27 Aug 2:52 am EDT

More Information:

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

Extended Forecast for

Sterling VA

Overnight
Low: 70 °F
Mostly Cloudy
Thursday
High: 89 °F
Mostly Sunny
then Severe
Thunderstorms
Thursday Night
Low: 68 °F
Severe
Thunderstorms
then
Scattered
Showers and
Patchy Fog
Friday
High: 86 °F
Partly Sunny
Friday Night
Low: 67 °F
Mostly Cloudy
then Patchy
Fog
Saturday
High: 87 °F
Mostly Sunny
Saturday Night
Low: 68 °F
Mostly Clear
then Patchy
Fog
Sunday
High: 89 °F
Patchy Fog
then Sunny
Sunday Night
Low: 71 °F
Partly Cloudy

Detailed Forecast

Overnight

Mostly cloudy, with a low around 70. South wind around 7 mph.

Thursday

Isolated showers, then scattered showers and thunderstorms after 1pm. Some of the storms could be severe. Mostly sunny, with a high near 89. South wind 6 to 9 mph. Chance of precipitation is 50%.

Thursday Night

Showers and thunderstorms likely before 11pm, then scattered showers between 11pm and 2am. Some of the storms could be severe. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Partly sunny, with a high near 86. Calm wind becoming north around 5 mph in the afternoon.

Friday Night

Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 67. Calm wind.

Saturday

Mostly sunny, with a high near 87.

Saturday Night

Patchy fog after 4am. Otherwise, mostly clear, with a low around 68.

Sunday

Patchy fog before 7am. Otherwise, sunny, with a high near 89.

Sunday Night

Partly cloudy, with a low around 71.