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.

Mostly Cloudy

57°F

14°C

Humidity 51%
Wind Speed NW 7 mph
Barometer 29.89 in (1012.2 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 25 Dec 1:52 pm EST
Extended Forecast for

Reston VA

  • Christmas Day

    Christmas Day: Mostly sunny, with a high near 54. Northwest wind around 9 mph, with gusts as high as 18 mph.

    High: 54 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 28. North wind 6 to 9 mph.

    Low: 28 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of freezing rain before 1pm, then a chance of rain between 1pm and 4pm, then a chance of sleet after 4pm. Mostly cloudy, with a high near 35. Light and variable wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

    High: 35 °F

    Mostly Cloudy
    then Chance
    Wintry Mix

  • Friday Night

    Friday Night: Rain likely, possibly mixed with sleet before 10pm, then rain likely between 10pm and 1am, then a slight chance of drizzle after 1am. Mostly cloudy, with a low around 35. South wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%. Little or no sleet accumulation expected.

    Low: 35 °F

    Rain/Sleet
    Likely then
    Rain Likely

  • Saturday

    Saturday: Partly sunny, with a high near 47. North wind 6 to 9 mph.

    High: 47 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain after 1pm. Cloudy, with a high near 47. Chance of precipitation is 30%.

    High: 47 °F

    Cloudy then
    Chance Rain

  • Sunday Night

    Sunday Night: A chance of rain. Cloudy, with a low around 42. Chance of precipitation is 50%.

    Low: 42 °F

    Chance Rain

  • Monday

    Monday: Rain likely, mainly before 1pm. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.

    High: 59 °F

    Rain Likely

Detailed Forecast

Christmas Day
Mostly sunny, with a high near 54. Northwest wind around 9 mph, with gusts as high as 18 mph.
Tonight
Partly cloudy, with a low around 28. North wind 6 to 9 mph.
Friday
A slight chance of freezing rain before 1pm, then a chance of rain between 1pm and 4pm, then a chance of sleet after 4pm. Mostly cloudy, with a high near 35. Light and variable wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 40%.
Friday Night
Rain likely, possibly mixed with sleet before 10pm, then rain likely between 10pm and 1am, then a slight chance of drizzle after 1am. Mostly cloudy, with a low around 35. South wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 70%. Little or no sleet accumulation expected.
Saturday
Partly sunny, with a high near 47. North wind 6 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 31.
Sunday
A chance of rain after 1pm. Cloudy, with a high near 47. Chance of precipitation is 30%.
Sunday Night
A chance of rain. Cloudy, with a low around 42. Chance of precipitation is 50%.
Monday
Rain likely, mainly before 1pm. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 24.
Wednesday
Mostly sunny, with a high near 41.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Reston VA
 38.97°N 77.36°W (Elev. 430 ft)
Last Update:
2:04 pm EST Dec 25, 2025
Forecast Valid:
2pm EST Dec 25, 2025-6pm EST Dec 31, 2025
 
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Additional Resources

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High Temperature

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Chance of Precipitation