Widespread Summer Heat; Enhanced Severe Weather

A large ridge of high pressure continues to deliver summer heat w/ humidity in several sections of the country. Excessive heat warnings and heat advisories are in effect across the Desert Southwest, south-central Plains, Mid to Lower Mississippi Valley and a small part of the Mid-Atlantic. Meanwhile, an enhanced risk of organized severe thunderstorms is possible from Iowa to Illinois and Indiana. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93° N Lon: 77.45° W Elev: 312 ft.

Partly Cloudy

84°F

29°C

Humidity 63%
Wind Speed Vrbl 3 mph
Barometer 30.10 in (1019.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 20 Aug 9:52 am EDT
Detailed forecast for

Eastern Loudoun

Today
Mostly sunny. Isolated showers and thunderstorms this morning, then scattered showers and thunderstorms this afternoon. Highs in the lower 90s. Northeast winds around 5 mph, becoming southeast this afternoon. Chance of rain 50 percent.
Tonight
Mostly cloudy. Numerous showers with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Lows in the lower 70s. South winds around 5 mph. Chance of rain 60 percent.
Wednesday
Partly sunny. Patchy fog in the morning. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 50 percent.
Wednesday Night
Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Southwest winds around 5 mph. Chance of rain 50 percent.
Thursday
Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs around 90. West winds around 5 mph. Chance of rain 50 percent.
Thursday Night
Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of rain 50 percent.
Friday
Partly sunny with a chance of showers and thunderstorms. Highs around 80. Chance of rain 40 percent.
Friday Night
Partly cloudy with a chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 40 percent.
Saturday
Mostly sunny. Highs around 80.
Saturday Night
Mostly clear. Lows around 60.
Sunday
Mostly sunny. Highs in the lower 80s.
Sunday Night
Partly cloudy. Lows in the lower 60s.
Monday
Mostly sunny. Highs in the lower 80s.



Click Map For Forecast
735 AM EDT Tue Aug 20 2019
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database