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.
Overnight
51°F
Mostly Clear
Mostly clear, with a low around 51. South wind around 5 mph.
7-day forecast for Bull Run
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 51°F | Mostly Clear | 5 mph S | 1% |
| Wednesday | 75°F | Mostly Sunny | 3 to 10 mph S | 1% |
| Wednesday Night | 62°F | Mostly Cloudy then Chance Rain Showers | 6 to 9 mph S | 41% |
| Thursday | 76°F | Chance Rain Showers | 8 to 12 mph S | 37% |
| Thursday Night | 61°F | Chance Rain Showers | 2 to 7 mph SW | 54% |
| Friday | 71°F | Chance Light Rain | 5 mph N | 53% |
| Friday Night | 50°F | Chance Light Rain then Partly Cloudy | 2 to 8 mph NW | 30% |
| Saturday | 66°F | Mostly Sunny | 8 to 14 mph NW | 6% |
| Saturday Night | 43°F | Mostly Clear | 10 mph NW | 5% |
| Sunday | 62°F | Mostly Sunny | 7 to 10 mph NW | 2% |
| Sunday Night | 40°F | Mostly Clear | 6 mph NW | 5% |
| Monday | 63°F | Sunny | 6 to 13 mph NW | 5% |
| Monday Night | 38°F | Mostly Clear | 2 to 7 mph W | 4% |
| Tuesday | 66°F | Sunny | 2 to 7 mph SW | 1% |
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 Nov 4, 2026.