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

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fog/Mist

70°F

21°C

Humidity 97%
Wind Speed S 3 mph
Barometer 30.15 in (1020.8 mb)
Dewpoint 69°F (21°C)
Visibility 4.00 mi
Last update 28 Jun 12:52 am EDT
Extended Forecast for

2 Miles SSW Ashburn VA

  • Overnight

    Overnight: Scattered showers and thunderstorms before 2am, then isolated showers. Patchy fog. Otherwise, cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.

    Low: 70 °F

    Scattered
    Showers and
    Patchy Fog

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly after 3pm. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 91. Heat index values as high as 102. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 30%.

    High: 91 °F

    Patchy Fog
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Northwest wind around 5 mph. Chance of precipitation is 20%.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 71. Light south wind. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 60%.

    High: 91 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Monday Night

    Monday 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

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm, mainly after 2pm. High near 88. Chance of precipitation is 80%.

    High: 88 °F

    Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 8pm. Low around 69. Chance of precipitation is 80%.

    Low: 69 °F

    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Scattered showers and thunderstorms before 2am, then isolated showers. Patchy fog. Otherwise, cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms, mainly after 3pm. Patchy fog before 9am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 91. Heat index values as high as 102. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Northwest wind around 5 mph. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 71. Light south wind. Chance of precipitation is 20%.
Monday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 60%.
Monday 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%.
Tuesday
Showers and possibly a thunderstorm, mainly after 2pm. High near 88. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm before 8pm. Low around 69. Chance of precipitation is 80%.
Wednesday
Sunny, with a high near 89.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 67.
Independence Day
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SSW Ashburn VA
 39.03°N 77.49°W (Elev. 285 ft)
Last Update:
10:30 pm EDT Jun 27, 2025
Forecast Valid:
1am EDT Jun 28, 2025-6pm EDT Jul 4, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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