Triangle, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Triangle, a community in Prince William County, Virginia.
Tonight
52°F
Mostly Clear
Mostly clear, with a low around 52. South wind around 5 mph.
7-day forecast for Triangle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear | 5 mph S | 2% |
| Wednesday | 76°F | Mostly Sunny | 3 to 8 mph S | 2% |
| Wednesday Night | 63°F | Mostly Cloudy then Chance Light Rain | 7 mph S | 26% |
| Thursday | 76°F | Chance Light Rain | 9 mph S | 25% |
| Thursday Night | 63°F | Light Rain Likely | 2 to 6 mph S | 60% |
| Friday | 71°F | Light Rain | 5 mph N | 75% |
| Friday Night | 52°F | Light Rain Likely | 1 to 6 mph N | 69% |
| Saturday | 66°F | Mostly Sunny | 6 to 9 mph NW | 14% |
| Saturday Night | 44°F | Mostly Clear | 7 mph NW | 14% |
| Sunday | 63°F | Mostly Sunny | 7 mph W | 4% |
| Sunday Night | 42°F | Partly Cloudy then Slight Chance Light Rain | 5 mph NW | 18% |
| Monday | 63°F | Slight Chance Light Rain | 5 to 12 mph W | 22% |
| Monday Night | 40°F | Slight Chance Light Rain | 7 mph W | 22% |
| Tuesday | 66°F | Sunny | 6 to 10 mph W | 10% |
Forecast source: National Weather Service (api.weather.gov) for Triangle (38.547, -77.318). Updated through the day.
Growing snapshot for Triangle
Last spring frost
Mar 28
First fall frost
Nov 8
Growing season
226 days
Hardiness zone
7b
More local growing data for Triangle: nearby ZIP 22026 weather · frost dates · planting calendar · Virginia frost dates
Nearby towns & communities
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Innovation
Lake Ridge
Laurel Hill
Leesylvania
Linton Hall
Manassas Park
Montclair
Nokesville
Occoquan
Potomac Mills
Quantico
Quantico Base
Sudley
Woodbridge
Climate data from the nearest NOAA station, Quantico Mcas, Va (4.2 mi from Triangle). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.