Bull Run, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bull Run, a community in Prince William County, Virginia.
This Afternoon
85°F
Isolated Rain Showers
Isolated rain showers. Mostly sunny, with a high near 85. North wind around 10 mph. Chance of precipitation is 20%.
7-day forecast for Bull Run
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Isolated Rain Showers | 10 mph N | 20% |
| Tonight | 62°F | Isolated Rain Showers then Mostly Cloudy | 9 mph N | 20% |
| Saturday | 79°F | Partly Sunny | 7 mph NE | 10% |
| Saturday Night | 66°F | Mostly Cloudy | 7 mph SE | 10% |
| Sunday | 84°F | Partly Sunny then Chance Showers And Thunderstorms | 6 to 13 mph S | 43% |
| Sunday Night | 65°F | Showers And Thunderstorms Likely | 3 to 9 mph NW | 58% |
| Monday | 75°F | Mostly Cloudy then Chance Rain Showers | 7 to 10 mph NE | 41% |
| Monday Night | 62°F | Rain Showers Likely | 5 to 8 mph NE | 60% |
| Tuesday | 67°F | Rain Showers Likely | 10 mph NE | 64% |
| Tuesday Night | 56°F | Rain Showers Likely | 10 mph NE | 64% |
| Wednesday | 62°F | Rain Showers Likely | 12 mph NE | 57% |
| Wednesday Night | 56°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 53% |
| Thursday | 65°F | Chance Showers And Thunderstorms | 10 mph N | 52% |
| Thursday Night | 55°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 34% |
Forecast source: National Weather Service (api.weather.gov) for Bull Run (38.780, -77.520). Updated through the day.
Growing snapshot for Bull Run
Last spring frost
Apr 12
First fall frost
Oct 27
Growing season
197 days
Hardiness zone
7a
More local growing data for Bull Run: nearby ZIP 20109 weather · frost dates · planting calendar · Virginia frost dates
Nearby towns & communities
Buckhall
Bull Run Mountain Estates
Cherry Hill
County Center
Dale City
Dumfries
Gainesville
Haymarket
Independent Hill
Innovation
Lake Ridge
Laurel Hill
Leesylvania
Linton Hall
Manassas Park
Montclair
Nokesville
Occoquan
Potomac Mills
Quantico
Quantico Base
Sudley
Triangle
Woodbridge
Climate data from the nearest NOAA station, Manassas, Va (4.7 mi from Bull Run). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.