


Hazardous Weather Conditions
Current conditions at
Washington/Dulles International Airport, DC (KIAD)
Lat: 38.93°NLon: 77.45°WElev: 312ft.
Fog/Mist
67°F
19°C
Humidity | 100% |
Wind Speed | Calm |
Barometer | 30.01 in (1016.0 mb) |
Dewpoint | 67°F (19°C) |
Visibility | 1.00 mi |
Last update | 17 Jun 6:52 am EDT |
Extended Forecast for
Herndon VA
Flood Watch June 17, 11:00am until June 17, 10:00pm
Today
High: 82 °F
Slight Chance
Showers and
Patchy Fog
then Chance
T-stormsTonight
Low: 71 °F
Heavy Rain
then Chance
T-stormsWednesday
High: 91 °F
Chance
Showers then
Showers
LikelyWednesday Night
Low: 73 °F
Showers
Likely then
Mostly ClearJuneteenth
High: 93 °F
Sunny then
Showers
LikelyThursday Night
Low: 66 °F
Showers
Likely then
Slight Chance
ShowersFriday
High: 88 °F
Sunny
Friday Night
Low: 68 °F
Partly Cloudy
Saturday
High: 92 °F
Sunny
Detailed Forecast
Today
A chance of rain before 11am, then a chance of showers and thunderstorms after 3pm. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 82. South wind 5 to 7 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 71. Southeast wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 91. Southwest wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly clear, with a low around 73. Southwest wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Juneteenth
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 93. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers between 8pm and 2am. Partly cloudy, with a low around 66. Chance of precipitation is 60%.
Friday
Sunny, with a high near 88.
Friday Night
Partly cloudy, with a low around 68.
Saturday
Sunny, with a high near 92.
Saturday Night
Partly cloudy, with a low around 73.
Sunday
Mostly sunny, with a high near 96.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny and hot, with a high near 98.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Herndon VA
38.97°N 77.38°W (Elev. 354 ft)
38.97°N 77.38°W (Elev. 354 ft)
7:29 am EDT Jun 17, 2025
7am EDT Jun 17, 2025-6pm EDT Jun 23, 2025