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

51°F

11°C

Humidity 92%
Wind Speed NE 6 mph
Barometer 30.16 in (1021.2 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 10 Jan 4:52 am EST
Extended Forecast for

Reston VA

  • Overnight

    Overnight: A chance of rain. Cloudy, with a low around 44. North wind around 5 mph. Chance of precipitation is 40%.

    Low: 44 °F

    Chance Rain

  • Saturday

    Saturday: Rain, mainly before 5pm. High near 47. East wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 47 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 38. Light and variable wind becoming northwest 6 to 11 mph after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Rain Likely
    then Slight
    Chance Rain

  • Sunday

    Sunday: A slight chance of rain after 1pm, mixing with snow after 4pm. Mostly sunny, with a high near 44. Breezy, with a northwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 20%.

    High: 44 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow and
    Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 29. Northwest wind 14 to 17 mph, with gusts as high as 36 mph.

    Low: 29 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of rain. Cloudy, with a low around 44. North wind around 5 mph. Chance of precipitation is 40%.
Saturday
Rain, mainly before 5pm. High near 47. East wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Saturday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 38. Light and variable wind becoming northwest 6 to 11 mph after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A slight chance of rain after 1pm, mixing with snow after 4pm. Mostly sunny, with a high near 44. Breezy, with a northwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 39 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 29. Northwest wind 14 to 17 mph, with gusts as high as 36 mph.
Monday
Sunny, with a high near 45.
Monday Night
Mostly clear, with a low around 29.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 40.
Wednesday
Mostly cloudy, with a high near 51.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Thursday
A chance of rain. Partly sunny, with a high near 37. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 36.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Reston VA
 38.94°N 77.33°W (Elev. 390 ft)
Last Update:
3:53 am EST Jan 10, 2026
Forecast Valid:
5am EST Jan 10, 2026-6pm EST Jan 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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