Current conditions at
Washington Manassas Airport (KHEF)
Lat: 38.72°NLon: 77.52°WElev: 194ft.
Fair
77°F
25°C
| Humidity | 54% |
| Wind Speed | Calm |
| Barometer | 30.05 in (1018.1 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 21 Aug 7:56 pm EDT |
Extended Forecast for
4 Miles NW Haymarket VA
Tonight
Low: 64 °F
Mostly Cloudy
then Chance
ShowersSaturday
High: 78 °F
Showers
LikelySaturday Night
Low: 66 °F
Chance
T-storms then
Chance
ShowersSunday
High: 82 °F
Mostly Sunny
Sunday Night
Low: 61 °F
Mostly Clear
Monday
High: 81 °F
Sunny
Monday Night
Low: 59 °F
Mostly Clear
Tuesday
High: 81 °F
Sunny
Tuesday Night
Low: 63 °F
Mostly Clear
Detailed Forecast
Tonight
A chance of showers after 4am. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Cloudy, with a high near 78. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Light and variable wind. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 82. Northwest wind 5 to 9 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 61. Northwest wind around 6 mph.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles NW Haymarket VA
38.87°N 77.69°W (Elev. 682 ft)
38.87°N 77.69°W (Elev. 682 ft)
7:52 pm EDT Aug 21, 2026
8pm EDT Aug 21, 2026-6pm EDT Aug 28, 2026
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