


Hazardous Weather Conditions
Current conditions at
Washington/Dulles International Airport, DC (KIAD)
Lat: 38.93°NLon: 77.45°WElev: 312ft.
Light Rain
80°F
27°C
Humidity | 76% |
Wind Speed | NE 7 mph |
Barometer | 30.06 in (1017.7 mb) |
Dewpoint | 72°F (22°C) |
Visibility | 8.00 mi |
Heat Index | 84°F (29°C) |
Last update | 18 Jul 7:52 pm EDT |
Extended Forecast for
2 Miles S Herndon VA
Tonight
Low: 71 °F
Chance
T-storms and
Patchy FogSaturday
High: 86 °F
Patchy Fog
then Showers
LikelySaturday Night
Low: 72 °F
Showers
Likely then
Slight Chance
T-stormsSunday
High: 92 °F
Partly Sunny
then Chance
T-stormsSunday Night
Low: 69 °F
Chance
T-storms then
Partly CloudyMonday
High: 85 °F
Sunny
Monday Night
Low: 65 °F
Partly Cloudy
Tuesday
High: 84 °F
Mostly Sunny
Tuesday Night
Low: 67 °F
Partly Cloudy
Detailed Forecast
Tonight
A chance of showers and thunderstorms, mainly after 1am. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 71. Northeast wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 50%.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 86. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. West wind 3 to 8 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Northwest wind around 6 mph. Chance of precipitation is 30%.
Monday
Sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 65.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Mostly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 71.
Thursday
Mostly sunny, with a high near 93.
Thursday Night
Partly cloudy, with a low around 74.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 96. Chance of precipitation is 30%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles S Herndon VA
38.95°N 77.39°W (Elev. 384 ft)
38.95°N 77.39°W (Elev. 384 ft)
7:31 pm EDT Jul 18, 2025
7pm EDT Jul 18, 2025-6pm EDT Jul 25, 2025