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

Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Washington Manassas Airport (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Overcast

61°F

16°C

Humidity 97%
Wind Speed N 9 mph
Barometer 29.81 in (1009.9 mb)
Dewpoint 60°F (16°C)
Visibility 3.00 mi
Last update 11 Oct 7:56 pm EDT
Extended Forecast for

Haymarket VA

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before 4am, then a chance of showers and thunderstorms after 4am. Patchy fog. Low around 60. North wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 60 °F

    Showers and
    Patchy Fog

  • Columbus Day

    Columbus Day: A chance of showers before 7am. Partly sunny, with a high near 74. North wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny through mid morning, then becoming sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 79 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. Southwest wind 3 to 7 mph.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 61. Chance of precipitation is 20%.

    Low: 61 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 20%.

    High: 70 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers and possibly a thunderstorm, mainly before 4am, then a chance of showers and thunderstorms after 4am. Patchy fog. Low around 60. North wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Columbus Day
A chance of showers before 7am. Partly sunny, with a high near 74. North wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny through mid morning, then becoming sunny, with a high near 79. Calm wind becoming south 5 to 8 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 62. Southwest wind 3 to 7 mph.
Wednesday
Sunny, with a high near 83.
Wednesday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 61. Chance of precipitation is 20%.
Thursday
A slight chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 20%.
Thursday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 55. Breezy.
Saturday Night
Partly cloudy, with a low around 37.
Sunday
Sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Haymarket VA
 38.82°N 77.64°W (Elev. 348 ft)
Last Update:
7:53 pm EDT Oct 11, 2026
Forecast Valid:
8pm EDT Oct 11, 2026-6pm EDT Oct 18, 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