National Weather Service

News Headlines

2026 NWS Baltimore/Washington summer student volunteer application period is now open

Current conditions at

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

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Fog/Mist

46°F

8°C

Humidity	100%
Wind Speed	Calm
Barometer	29.84 in (1011.1 mb)
Dewpoint	46°F (8°C)
Visibility	4.00 mi
Last update	10 Jan 7:56 pm EST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

4 Miles NW Haymarket VA

Tonight
Low: 36 °F
Chance Rain
then Mostly
Cloudy
Sunday
High: 43 °F
Mostly Sunny
then Slight
Chance
Rain/Snow and
Breezy
Sunday Night
Low: 28 °F
Mostly Clear
and Breezy
then Mostly
Clear
Monday
High: 45 °F
Sunny
Monday Night
Low: 28 °F
Mostly Clear
Tuesday
High: 50 °F
Mostly Sunny
Tuesday Night
Low: 39 °F
Mostly Cloudy
Wednesday
High: 50 °F
Cloudy
Wednesday Night
Low: 29 °F
Mostly Cloudy
then Chance
Rain

Detailed Forecast

Tonight

A chance of rain, mainly before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 36. Light and variable wind becoming northwest 8 to 13 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 30%.

Sunday

A slight chance of rain and snow showers between 1pm and 4pm. Mostly sunny, with a high near 43. Breezy, with a west wind 11 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 20%.

Sunday Night

Mostly clear, with a low around 28. Breezy, with a northwest wind 13 to 21 mph, with gusts as high as 36 mph.

Monday

Sunny, with a high near 45. West wind 7 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.

Monday Night

Mostly clear, with a low around 28. Southwest wind around 6 mph becoming calm in the evening.

Tuesday

Mostly sunny, with a high near 50.

Tuesday Night

Mostly cloudy, with a low around 39.

Wednesday

Cloudy, with a high near 50.