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

Heat Wave in the Eastern US; Heavy Rain in the Ohio Valley

Dangerous, long-lasting heat is expected across portions of the Central and Southeast U.S. Showers and thunderstorms, some severe, may produce heavy rain and localized areas of flash flooding across parts of the Ohio/Tennessee Valleys into the Appalachians. Severe thunderstorms are possible across parts of the northern Great Plains. Fire weather conditions possible in the Great Basin. Read More >

Current conditions at

Manassas, Manassas Regional Airport/Harry P. Davis Field (KHEF)

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Mostly Cloudy

80°F

27°C

Humidity 74%
Wind Speed N 6 mph
Barometer 29.89 in (1012.4 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 21 Jul 2:56 am EDT
Extended Forecast for

3 Miles N Haymarket VA

  • Overnight

    Overnight: Mostly cloudy, with a low around 72. Northwest wind around 7 mph.

    Low: 72 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 84. North wind 6 to 8 mph.

    High: 84 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. Light north wind.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. North wind around 6 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64. East wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 72. Northwest wind around 7 mph.
Monday
Mostly sunny, with a high near 84. North wind 6 to 8 mph.
Monday Night
Mostly clear, with a low around 63. Light north wind.
Tuesday
Sunny, with a high near 83. North wind around 6 mph.
Tuesday Night
Mostly clear, with a low around 64. East wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Mostly clear, with a low around 67.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 71.
Friday
Sunny, with a high near 95.
Friday Night
Partly cloudy, with a low around 74.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Haymarket VA
 38.86°N 77.63°W (Elev. 400 ft)
Last Update:
1:30 am EDT Jul 21, 2025
Forecast Valid:
3am EDT Jul 21, 2025-6pm EDT Jul 27, 2025
 
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