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

Fire Weather Concerns for the Plains; Thunderstorms in the Southeast; Record Warmth Spreads in the Southwest

Elevated to locally critical conditions will persist across the High Plains. Showers and scattered thunderstorms are expected over parts of the Southeast and Florida Peninsula. Clipper system will bring modest snowfall and strong winds from the Northern High Plains into the Upper Midwest this weekend. Record warmth will persist across the Southwest into the southern Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fog/Mist

26°F

-3°C

Humidity 100%
Wind Speed Calm
Barometer 30.04 in (1017.5 mb)
Dewpoint 26°F (-3°C)
Visibility 6.00 mi
Last update 27 Feb 5:52 am EST
Extended Forecast for

3 Miles NNW Mc Lean VA

  • Today

    Today: Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 53. Light and variable wind.

    High: 53 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 35. Southeast wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 60. South wind 3 to 5 mph.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. Calm wind becoming south around 5 mph after midnight.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 50. North wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 50 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of snow. Mostly cloudy, with a high near 33. Chance of precipitation is 40%.

    High: 33 °F

    Chance Snow

  • Monday Night

    Monday Night: A chance of snow and freezing rain after 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Wintry Mix

  • Tuesday

    Tuesday: A chance of rain or freezing rain before 1pm, then a chance of rain. Mostly cloudy, with a high near 39. Chance of precipitation is 50%.

    High: 39 °F

    Chance
    Rain/Freezing
    Rain

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 53. Light and variable wind.
Tonight
Mostly clear, with a low around 35. Southeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 60. South wind 3 to 5 mph.
Saturday Night
Mostly clear, with a low around 39. Calm wind becoming south around 5 mph after midnight.
Sunday
Mostly sunny, with a high near 50. North wind 6 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
A chance of snow. Mostly cloudy, with a high near 33. Chance of precipitation is 40%.
Monday Night
A chance of snow and freezing rain after 1am. Mostly cloudy, with a low around 25. Chance of precipitation is 30%.
Tuesday
A chance of rain or freezing rain before 1pm, then a chance of rain. Mostly cloudy, with a high near 39. Chance of precipitation is 50%.
Tuesday Night
Rain likely. Cloudy, with a low around 35. Chance of precipitation is 60%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 53. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 41.
Thursday
A chance of rain. Mostly cloudy, with a high near 62. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Mc Lean VA
 38.98°N 77.24°W (Elev. 98 ft)
Last Update:
5:13 am EST Feb 27, 2026
Forecast Valid:
6am EST Feb 27, 2026-6pm EST Mar 5, 2026
 
Forecast Discussion
 
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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