Areas of Excessive Rainfall and Severe Thunderstorms; Fire Weather Concerns in the Northern Plains and Four Corners Region

Widespread showers and thunderstorms may bring areas of flash flooding across much of the Southern Plains into the Gulf Coast region and the upper Ohio River Valley into the Mid-Atlantic. A large Pacific storm will bring widespread rain, gusty winds, and mountain snow to California and the Great Basin. Fire weather concerns expected in the Northern Plains and the Four Corners region. Read More >

Hazardous Weather Conditions

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

69°F

21°C

Humidity 96%
Wind Speed SE 5 mph
Barometer 29.98 in (1014.9 mb)
Dewpoint 68°F (20°C)
Visibility 8.00 mi
Last update 27 May 2:52 am EDT
Extended Forecast for

Fairfax VA

  • Overnight

    Overnight: Showers likely, mainly between 4am and 5am.  Patchy fog after 5am.  Otherwise, cloudy, with a low around 65. Calm wind.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 65 °F

    Showers
    Likely and
    Patchy Fog

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm.  Patchy fog before 8am. High near 80. Light and variable wind becoming northwest 5 to 7 mph in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 80 °F

    Chance
    Showers and
    Patchy Fog
    then Showers

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers.  Mostly cloudy, with a low around 64. West wind 3 to 6 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 78. North wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. North wind 5 to 7 mph.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers likely, mainly between 4am and 5am. Patchy fog after 5am. Otherwise, cloudy, with a low around 65. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2pm. Patchy fog before 8am. High near 80. Light and variable wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers. Mostly cloudy, with a low around 64. West wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Sunny, with a high near 78. North wind 7 to 13 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 55. North wind 5 to 7 mph.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 54.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Mostly sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VA
 38.85°N 77.29°W (Elev. 400 ft)
2:22 am EDT May 27, 2026
3am EDT May 27, 2026-6pm EDT Jun 2, 2026
 
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