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

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

39°F

4°C

Humidity 57%
Wind Speed NW 17 G 32 mph
Barometer 29.80 in (1009.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 23 Feb 1:52 pm EST
Extended Forecast for

2 Miles WNW Chantilly VA

  • This Afternoon

    This Afternoon: Cloudy, with a high near 40. Breezy, with a northwest wind around 20 mph, with gusts as high as 36 mph.

    High: 40 °F

    Cloudy and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Northwest wind 13 to 18 mph, with gusts as high as 29 mph.

    Low: 23 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Sunny, with a high near 40. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 40 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow after 1am, mixing with rain after 4am. Increasing clouds, with a low around 31. South wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 54. South wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 54 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain after 1am. Partly cloudy, with a low around 35. Chance of precipitation is 20%.

    Low: 35 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Thursday

    Thursday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 70%.

    High: 47 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.

    Low: 34 °F

    Rain Likely

  • Friday

    Friday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 40. Breezy, with a northwest wind around 20 mph, with gusts as high as 36 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Northwest wind 13 to 18 mph, with gusts as high as 29 mph.
Tuesday
Sunny, with a high near 40. Northwest wind 7 to 11 mph, with gusts as high as 20 mph.
Tuesday Night
A slight chance of snow after 1am, mixing with rain after 4am. Increasing clouds, with a low around 31. South wind 5 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 54. South wind 11 to 14 mph, with gusts as high as 23 mph.
Wednesday Night
A slight chance of rain after 1am. Partly cloudy, with a low around 35. Chance of precipitation is 20%.
Thursday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 70%.
Thursday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 34. Chance of precipitation is 60%.
Friday
Mostly sunny, with a high near 49.
Friday Night
Mostly clear, with a low around 31.
Saturday
Sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Mostly sunny, with a high near 52.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Chantilly VA
 38.89°N 77.46°W (Elev. 282 ft)
Last Update:
12:53 pm EST Feb 23, 2026
Forecast Valid:
2pm EST Feb 23, 2026-6pm EST Mar 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation