Hazardous Weather Conditions
Current conditions at
Washington/Dulles International Airport, DC (KIAD)
Lat: 38.93°NLon: 77.45°WElev: 312ft.
Overcast
29°F
-2°C
| Humidity | 89% |
| Wind Speed | NE 3 mph |
| Barometer | 30.04 in (1017.6 mb) |
| Dewpoint | 26°F (-3°C) |
| Visibility | 8.00 mi |
| Last update | 5 Dec 6:52 pm EST |
Extended Forecast for
3 Miles SSW Herndon VA
Winter Weather Advisory until December 6, 01:00am
NOW until 1:00am Sat

Winter Weather Advisory
Tonight

Low: 26 °F
Freezing Rain
and Patchy
FogSaturday
High: 42 °F
Patchy Fog
then Partly
SunnySaturday Night

Low: 26 °F
Partly Cloudy
Sunday

High: 43 °F
Partly Sunny
Sunday Night

Low: 26 °F
Mostly Cloudy
Monday

High: 34 °F
Partly Sunny
Monday Night

Low: 18 °F
Partly Cloudy
Tuesday

High: 38 °F
Mostly Sunny
Detailed Forecast
Tonight
Freezing rain, mainly before 1am. Patchy fog. Low around 26. Calm wind. Chance of precipitation is 80%. Total nighttime ice accumulation of less than a 0.1 of an inch possible.
Saturday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 42. Calm wind.
Saturday Night
Partly cloudy, with a low around 26. Calm wind.
Sunday
Partly sunny, with a high near 43. Calm wind becoming south around 5 mph.
Sunday Night
Mostly cloudy, with a low around 26. Calm wind becoming north 5 to 8 mph after midnight.
Monday
Partly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 38.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 46.
Thursday Night
Partly cloudy, with a low around 29.
Friday
Partly sunny, with a high near 42.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles SSW Herndon VA
38.93°N 77.42°W (Elev. 308 ft)
38.93°N 77.42°W (Elev. 308 ft)
6:53 pm EST Dec 5, 2025
7pm EST Dec 5, 2025-6pm EST Dec 12, 2025



