National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

71°F

22°C

Humidity 96%
Wind Speed Calm
Barometer 29.96 in (1014.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 16 Jul 11:52 pm EDT
Extended Forecast for

2 Miles S Washington-Dulles International Airport VA

Heat Advisory July 17, 11:00am until July 17, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 75. South wind around 7 mph. Chance of precipitation is 30%.

    Low: 75 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 96. Heat index values as high as 105. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 75. Southwest wind 5 to 7 mph becoming northwest after midnight.

    Low: 75 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Northwest wind around 7 mph. Chance of precipitation is 50%.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 72. Light northeast wind. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.

    High: 87 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

    Low: 72 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.

    High: 90 °F

    Partly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

    Low: 70 °F

    Showers
    Likely then
    Mostly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 75. South wind around 7 mph. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 96. Heat index values as high as 105. Southwest wind 7 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 75. Southwest wind 5 to 7 mph becoming northwest after midnight.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 89. Northwest wind around 7 mph. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 72. Light northeast wind. Chance of precipitation is 30%.
Saturday
Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Monday
A chance of showers after 2pm. Mostly sunny, with a high near 86. Chance of precipitation is 30%.
Monday Night
A chance of showers. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 88. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Washington-Dulles International Airport VA
 38.93°N 77.45°W (Elev. 299 ft)
Last Update:
10:31 pm EDT Jul 16, 2025
Forecast Valid:
12am EDT Jul 17, 2025-6pm EDT Jul 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation