Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest
A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >
Hazardous Weather Conditions
Current conditions at
Washington/Dulles International Airport, DC (KIAD)
Lat: 38.93°NLon: 77.45°WElev: 312ft.
A Few Clouds
82°F
28°C
| Humidity | 49% |
| Wind Speed | SE 10 G 18 mph |
| Barometer | 30.02 in (1016.2 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Heat Index | 83°F (28°C) |
| Last update | 23 Aug 2:52 pm EDT |
Extended Forecast for
2 Miles SW Herndon VA
Tonight
Low: 66 °F
Partly Cloudy
Sunday
High: 84 °F
Chance
Showers then
Chance
T-stormsSunday Night
Low: 65 °F
Chance
T-stormsMonday
High: 81 °F
Sunny
Monday Night
Low: 58 °F
Partly Cloudy
Tuesday
High: 77 °F
Mostly Sunny
Tuesday Night
Low: 56 °F
Partly Cloudy
Wednesday
High: 75 °F
Sunny
Wednesday Night
Low: 54 °F
Mostly Clear
Detailed Forecast
Tonight
Partly cloudy, with a low around 66. South wind 7 to 10 mph.
Sunday
A chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 84. South wind around 7 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 65. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
Sunny, with a high near 81. Northwest wind 6 to 10 mph.
Monday Night
Partly cloudy, with a low around 58. Northwest wind 6 to 8 mph.
Tuesday
Mostly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 79.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles SW Herndon VA
38.95°N 77.42°W (Elev. 351 ft)
38.95°N 77.42°W (Elev. 351 ft)
3:00 pm EDT Aug 23, 2025
3pm EDT Aug 23, 2025-6pm EDT Aug 30, 2025
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