Regional Outbreaks of Severe Weather Through Early Next Week; Early Season Heat Wave across the South

Active spring pattern across the center of our nation with several episodes of severe weather and heavy rainfall expected into next week. The potential for very large hail, long track tornadoes, severe wind gusts, frequent cloud to ground lightning strikes and flash flooding are in the outlook. Furthermore, dangerous early season heat wave continues for the Gulf Coast states into early next week. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Mostly Cloudy

71°F

22°C

Humidity 47%
Wind Speed W 12 G 21 mph
Barometer 29.78 in (1008.1 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 18 May 11:52 am EDT
Extended Forecast for

Fairfax VA

  • This Afternoon

    This Afternoon: Mostly cloudy, then gradually becoming sunny, with a high near 78. West wind 14 to 18 mph, with gusts as high as 31 mph.

    High: 78 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Clear, with a low around 56. Northwest wind 10 to 14 mph, with gusts as high as 21 mph.

    Low: 56 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 76. Northwest wind 13 to 17 mph, with gusts as high as 26 mph.

    High: 76 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. North wind 7 to 11 mph, with gusts as high as 18 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71. North wind 3 to 6 mph.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers.  Low around 56. Chance of precipitation is 90%.

    Low: 56 °F

    Showers

  • Wednesday

    Wednesday: Showers.  High near 64. Chance of precipitation is 90%.

    High: 64 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am.  Low around 55. Chance of precipitation is 80%.

    Low: 55 °F

    Showers

  • Thursday

    Thursday: Showers likely, mainly after 2pm.  Mostly cloudy, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly cloudy, then gradually becoming sunny, with a high near 78. West wind 14 to 18 mph, with gusts as high as 31 mph.
Tonight
Clear, with a low around 56. Northwest wind 10 to 14 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 76. Northwest wind 13 to 17 mph, with gusts as high as 26 mph.
Monday Night
Mostly clear, with a low around 51. North wind 7 to 11 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 71. North wind 3 to 6 mph.
Tuesday Night
Showers. Low around 56. Chance of precipitation is 90%.
Wednesday
Showers. High near 64. Chance of precipitation is 90%.
Wednesday Night
Showers before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Low around 55. Chance of precipitation is 80%.
Thursday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Thursday Night
Showers likely, mainly before 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Friday
A chance of showers. Mostly sunny, with a high near 65. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 50. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VA
 38.85°N 77.29°W (Elev. 400 ft)
12:11 pm EDT May 18, 2025
12pm EDT May 18, 2025-6pm EDT May 24, 2025
 
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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