Notice of NWS' New Version of Forecast
A new version of Forecast will launch March 7, 2017.
Click here to visit the new site for details.

Storms Continue to Pound the Western U.S.

Storms will continue to bring heavy rain, flooding and strong winds to California and many states across the west. Heavy rain will result in flooding for some areas, and heavy snow will be possible at high elevation locations. By mid-week, these storms may bring heavy snow to the northern Rockies and Intermountain west. Heavy rain and flooding will also impact the central Gulf Coast this week. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

53°F

12°C

Humidity 37%
Wind Speed S 10 mph
Barometer 30.23 in (1023.8 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 21 Feb 12:52 pm EST
Extended Forecast for

Herndon VA

  • This
    Afternoon

    This Afternoon: Partly sunny, with a high near 56. South wind around 8 mph.

    Partly Sunny

    High: 56 °F

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. South wind 5 to 7 mph.

    Mostly Cloudy

    Low: 44 °F

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 69. South wind around 6 mph.

    Mostly Cloudy

    High: 69 °F

  • Wednesday
    Night

    Wednesday Night: Mostly cloudy, with a low around 49. South wind around 6 mph.

    Mostly Cloudy

    Low: 49 °F

  • Thursday

    Thursday: A slight chance of showers after 1pm.  Mostly cloudy, with a high near 72. South wind 5 to 8 mph.  Chance of precipitation is 20%.

    Mostly Cloudy
    then Slight
    Chance
    Showers

    High: 72 °F

  • Thursday
    Night

    Thursday Night: A slight chance of showers.  Mostly cloudy, with a low around 53. Chance of precipitation is 20%.

    Slight Chance
    Showers

    Low: 53 °F

  • Friday

    Friday: Partly sunny, with a high near 72.

    Partly Sunny

    High: 72 °F

  • Friday
    Night

    Friday Night: Mostly cloudy, with a low around 57.

    Mostly Cloudy

    Low: 57 °F

  • Saturday

    Saturday: Showers likely.  Mostly cloudy, with a high near 66. Chance of precipitation is 70%.

    Showers
    Likely

    High: 66 °F

Detailed Forecast

This Afternoon
Partly sunny, with a high near 56. South wind around 8 mph.
Tonight
Mostly cloudy, with a low around 44. South wind 5 to 7 mph.
Wednesday
Mostly cloudy, with a high near 69. South wind around 6 mph.
Wednesday Night
Mostly cloudy, with a low around 49. South wind around 6 mph.
Thursday
A slight chance of showers after 1pm. Mostly cloudy, with a high near 72. South wind 5 to 8 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 53. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 72.
Friday Night
Mostly cloudy, with a low around 57.
Saturday
Showers likely. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.
Saturday Night
Partly cloudy, with a low around 35.
Sunday
Sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 52.
Click Map For Forecast
Point Forecast:
Herndon VA
 38.97°N 77.38°W (Elev. 354 ft)
12:27 pm EST Feb 21, 2017
1pm EST Feb 21, 2017-6pm EST Feb 27, 2017
 
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