Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

39°F

4°C

Humidity 53%
Wind Speed NW 20 G 31 mph
Barometer 30.26 in (1024.8 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 30 Nov 11:52 pm EST
Extended Forecast for

Herndon VA

  • Tonight

    Tonight: Partly cloudy, with a low around 29. Northwest wind 10 to 13 mph, with gusts as high as 25 mph.

    Low: 29 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 42. Northwest wind 5 to 10 mph becoming light north  in the afternoon. Winds could gust as high as 18 mph.

    High: 42 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of snow and sleet between 1am and 4am, then snow, possibly mixed with rain and sleet.  Low around 29. Calm wind becoming southeast around 5 mph in the evening.  Chance of precipitation is 80%. New snow and sleet accumulation of less than a half inch possible.

    Low: 29 °F

    Mostly Cloudy
    then Wintry
    Mix

  • Tuesday

    Tuesday: Rain, possibly mixed with snow and sleet, becoming all rain after 10am.  High near 38. Light and variable wind becoming northwest 5 to 9 mph in the afternoon.  Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.

    High: 38 °F

    Wintry Mix
    then Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 25. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 29. Northwest wind 10 to 13 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 42. Northwest wind 5 to 10 mph becoming light north in the afternoon. Winds could gust as high as 18 mph.
Monday Night
A chance of snow and sleet between 1am and 4am, then snow, possibly mixed with rain and sleet. Low around 29. Calm wind becoming southeast around 5 mph in the evening. Chance of precipitation is 80%. New snow and sleet accumulation of less than a half inch possible.
Tuesday
Rain, possibly mixed with snow and sleet, becoming all rain after 10am. High near 38. Light and variable wind becoming northwest 5 to 9 mph in the afternoon. Chance of precipitation is 100%. New snow and sleet accumulation of less than a half inch possible.
Tuesday Night
Partly cloudy, with a low around 25. Northwest wind 8 to 13 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 39.
Wednesday Night
Partly cloudy, with a low around 25.
Thursday
Partly sunny, with a high near 44.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 33.
Friday Night
A chance of snow and freezing rain. Cloudy, with a low around 28. Chance of precipitation is 50%.
Saturday
A chance of rain. Mostly cloudy, with a high near 41. Chance of precipitation is 30%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
Herndon VA
 38.97°N 77.38°W (Elev. 354 ft)
9:53 pm EST Nov 30, 2025
11pm EST Nov 30, 2025-6pm EST Dec 7, 2025
 
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Additional Resources

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