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

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Current conditions at

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

Lat: 38.72°NLon: 77.52°WElev: 194ft.

Overcast

54°F

12°C

Humidity 80%
Wind Speed Calm
Barometer 29.99 in (1016.0 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 21 Nov 4:56 pm EST
Extended Forecast for

Bristow VA

  • This Afternoon

    This Afternoon: A slight chance of showers. Mostly cloudy, with a high near 54. Calm wind. Chance of precipitation is 20%.

    High: 54 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Rain, mainly after 11pm. Low around 46. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain Likely
    then Rain

  • Saturday

    Saturday: A chance of showers, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 57. North wind 5 to 8 mph. Chance of precipitation is 40%.

    High: 57 °F

    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31. Light north wind.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 61. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain after 1pm. Cloudy, with a high near 57. Chance of precipitation is 40%.

    High: 57 °F

    Cloudy then
    Chance Rain

Detailed Forecast

This Afternoon
A slight chance of showers. Mostly cloudy, with a high near 54. Calm wind. Chance of precipitation is 20%.
Tonight
Rain, mainly after 11pm. Low around 46. Calm wind. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
A chance of showers, mainly before 10am. Cloudy through mid morning, then gradual clearing, with a high near 57. North wind 5 to 8 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 31. Light north wind.
Sunday
Sunny, with a high near 61. Calm wind becoming southwest around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 58.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
A chance of rain after 1pm. Cloudy, with a high near 57. Chance of precipitation is 40%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Wednesday
A chance of rain. Partly sunny, with a high near 66. Chance of precipitation is 30%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 37. Chance of precipitation is 30%.
Thanksgiving Day
Mostly sunny, with a high near 53.
Thursday Night
Partly cloudy, with a low around 28.
Friday
Mostly sunny, with a high near 47.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bristow VA
 38.74°N 77.54°W (Elev. 200 ft)
Last Update:
3:53 pm EST Nov 21, 2025
Forecast Valid:
5pm EST Nov 21, 2025-6pm EST Nov 28, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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