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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Fog/Mist

63°F

17°C

Humidity 93%
Wind Speed NE 5 mph
Barometer 30.11 in (1019.6 mb)
Dewpoint 61°F (16°C)
Visibility 5.00 mi
Last update 4 Oct 2:52 pm EDT
Extended Forecast for

4 Miles NNW Haymarket VA

  • Tonight

    Tonight: Patchy fog. Otherwise, mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Patchy Fog

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 70. Northwest wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 70 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 45. Northwest wind around 8 mph.

    Low: 45 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65. Northwest wind around 5 mph becoming calm in the afternoon.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 44. Light south wind.

    Low: 44 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 52.

    Low: 52 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Thursday Night

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

    Low: 52 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog. Otherwise, mostly cloudy, with a low around 56. Calm wind.
Monday
Partly sunny, then gradually becoming sunny, with a high near 70. Northwest wind 6 to 13 mph, with gusts as high as 21 mph.
Monday Night
Clear, with a low around 45. Northwest wind around 8 mph.
Tuesday
Sunny, with a high near 65. Northwest wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Clear, with a low around 44. Light south wind.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Clear, with a low around 52.
Thursday
Sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 52.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
Mostly cloudy, with a low around 51.
Sunday
A chance of showers. Partly sunny, with a high near 67. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Haymarket VA
 38.86°N 77.66°W (Elev. 469 ft)
Last Update:
2:23 pm EDT Oct 4, 2026
Forecast Valid:
3pm EDT Oct 4, 2026-6pm EDT Oct 11, 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