National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fair

20°F

-7°C

Humidity 55%
Wind Speed NW 10 mph
Barometer 30.32 in (1026.9 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 15 Jan 4:52 am EST
Extended Forecast for

Herndon VA

  • Today

    Today: Mostly sunny, with a high near 30. Northwest wind 15 to 18 mph, with gusts as high as 33 mph.

    High: 30 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 14. Northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 20 mph.

    Low: 14 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of snow showers after 1pm. Increasing clouds, with a high near 34. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 30%.

    High: 34 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 23. West wind 3 to 7 mph.

    Low: 23 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 40. West wind 6 to 9 mph.

    High: 40 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 42. Chance of precipitation is 70%.

    High: 42 °F

    Chance Rain
    then Rain
    Likely

  • Saturday Night

    Saturday Night: A chance of rain before 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.

    Low: 32 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain and snow before 1pm, then a chance of snow. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.

    High: 39 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Mostly sunny, with a high near 30. Northwest wind 15 to 18 mph, with gusts as high as 33 mph.
Tonight
Mostly clear, with a low around 14. Northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 20 mph.
Thursday
A chance of snow showers after 1pm. Increasing clouds, with a high near 34. Light south wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 23. West wind 3 to 7 mph.
Friday
Sunny, with a high near 40. West wind 6 to 9 mph.
Friday Night
Partly cloudy, with a low around 28.
Saturday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 42. Chance of precipitation is 70%.
Saturday Night
A chance of rain before 1am. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Sunday
A chance of rain and snow before 1pm, then a chance of snow. Mostly cloudy, with a high near 39. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 17.
M.L.King Day
Mostly sunny, with a high near 24.
Monday Night
Partly cloudy, with a low around 6.
Tuesday
Sunny, with a high near 17.
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Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Herndon VA
 38.97°N 77.38°W (Elev. 354 ft)
Last Update:
3:30 am EST Jan 15, 2025
Forecast Valid:
5am EST Jan 15, 2025-6pm EST Jan 21, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation