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

Critical Fire Weather in the Plains; Severe Thunderstorms in the Upper Mississippi Valley and Great Lakes

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the central and southern Plains today. Strong to severe thunderstorms are possible across portions of the upper Mississippi River Valley to the Great Lakes tonight through the day Tuesday. Damaging gusts, hail, and heavy rainfall are likely. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Overcast

56°F

13°C

Humidity 77%
Wind Speed SW 13 G 25 mph
Barometer 30.28 in (1025.2 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 30 Mar 11:52 am EDT
Extended Forecast for

Fairfax VA

  • This Afternoon

    This Afternoon: Showers likely, mainly before 2pm. Partly sunny, with a high near 70. Southwest wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Showers
    Likely

  • Tonight

    Tonight: Scattered showers, mainly between midnight and 4am. Mostly cloudy, with a low around 57. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 57 °F

    Mostly Cloudy
    then
    Scattered
    Showers

  • Tuesday

    Tuesday: Isolated showers before 8am, then isolated showers after 2pm. Mostly sunny, with a high near 81. Southwest wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 81 °F

    Mostly Sunny
    then Isolated
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64. Southwest wind 13 to 16 mph, with gusts as high as 28 mph.

    Low: 64 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Southwest wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 84 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.

    Low: 58 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 30%.

    High: 76 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 8pm. Partly cloudy, with a low around 61. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: A chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
Showers likely, mainly before 2pm. Partly sunny, with a high near 70. Southwest wind 11 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Scattered showers, mainly between midnight and 4am. Mostly cloudy, with a low around 57. Southwest wind 9 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Tuesday
Isolated showers before 8am, then isolated showers after 2pm. Mostly sunny, with a high near 81. Southwest wind 11 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 64. Southwest wind 13 to 16 mph, with gusts as high as 28 mph.
Wednesday
A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 84. Southwest wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 70%.
Thursday
A chance of showers after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 8pm. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Friday
A chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
Sunday
A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Fairfax VA
 38.85°N 77.32°W (Elev. 413 ft)
Last Update:
10:54 am EDT Mar 30, 2026
Forecast Valid:
12pm EDT Mar 30, 2026-6pm EDT Apr 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