Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Heavy Rain and Flooding in the Southern Plains to the Great Lakes

Several days of heavy rainfall will lead to flash flooding and river flooding from the Southern Plains to the Southern Great Lakes. A band of freezing rain is forecast across portions of the Southern Plains into the Middle Mississippi Valley. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

A Few Clouds

77°F

25°C

Humidity 60%
Wind Speed SW 16 G 25 mph
Barometer 30.29 in (1025.6 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 21 Feb 12:52 pm EST
Extended Forecast for

Fairfax VA

  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 79. Southwest wind around 14 mph, with gusts as high as 23 mph.

    Mostly Sunny

    High: 79 °F

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then areas of drizzle between 2am and 5am, then rain likely after 5am.  Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 47. Southwest wind 6 to 9 mph becoming north after midnight.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Showers
    Likely and
    Patchy Fog

    Low: 47 °F

  • Thursday

    Thursday: Periods of rain with areas of drizzle.  Patchy fog. Temperature rising to near 52 by 8am, then falling to around 42 during the remainder of the day. Northeast wind around 8 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Rain and
    Patchy Fog

    High: 52 °F

  • Thursday
    Night

    Thursday Night: Rain likely with areas of drizzle.  Patchy fog.  Otherwise, cloudy, with a low around 38. Northeast wind 5 to 7 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Rain Likely
    and Patchy
    Fog

    Low: 38 °F

  • Friday

    Friday: Rain likely with areas of drizzle before 2pm, then areas of drizzle with a chance of rain after 2pm.  Patchy fog before 8am.  Otherwise, cloudy, with a high near 51. East wind around 6 mph becoming southeast in the afternoon.  Chance of precipitation is 70%.

    Rain Likely
    and Patchy
    Fog

    High: 51 °F

  • Friday
    Night

    Friday Night: Areas of drizzle with a chance of rain.  Cloudy, with a low around 47. Chance of precipitation is 30%.

    Chance Rain

    Low: 47 °F

  • Saturday

    Saturday: Areas of drizzle with a chance of rain before 8am, then showers likely after 8am.  Cloudy, with a high near 63. Chance of precipitation is 60%.

    Showers
    Likely

    High: 63 °F

  • Saturday
    Night

    Saturday Night: Showers likely.  Cloudy, with a low around 52. Chance of precipitation is 70%.

    Showers
    Likely

    Low: 52 °F

  • Sunday

    Sunday: Showers likely.  Cloudy, with a high near 66. Chance of precipitation is 70%.

    Showers
    Likely

    High: 66 °F

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 79. Southwest wind around 14 mph, with gusts as high as 23 mph.
Tonight
A chance of showers and thunderstorms before 2am, then areas of drizzle between 2am and 5am, then rain likely after 5am. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 47. Southwest wind 6 to 9 mph becoming north after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Periods of rain with areas of drizzle. Patchy fog. Temperature rising to near 52 by 8am, then falling to around 42 during the remainder of the day. Northeast wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain likely with areas of drizzle. Patchy fog. Otherwise, cloudy, with a low around 38. Northeast wind 5 to 7 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain likely with areas of drizzle before 2pm, then areas of drizzle with a chance of rain after 2pm. Patchy fog before 8am. Otherwise, cloudy, with a high near 51. East wind around 6 mph becoming southeast in the afternoon. Chance of precipitation is 70%.
Friday Night
Areas of drizzle with a chance of rain. Cloudy, with a low around 47. Chance of precipitation is 30%.
Saturday
Areas of drizzle with a chance of rain before 8am, then showers likely after 8am. Cloudy, with a high near 63. Chance of precipitation is 60%.
Saturday Night
Showers likely. Cloudy, with a low around 52. Chance of precipitation is 70%.
Sunday
Showers likely. Cloudy, with a high near 66. Chance of precipitation is 70%.
Sunday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Monday
A chance of showers. Mostly sunny, with a high near 57. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Sunny, with a high near 54.
Click Map For Forecast
Point Forecast:
Fairfax VA
 38.85°N 77.29°W (Elev. 400 ft)
12:30 pm EST Feb 21, 2018
1pm EST Feb 21, 2018-6pm EST Feb 27, 2018
 
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