Triangle, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Triangle, a community in Prince William County, Virginia.
Overnight
64°F
Mostly Cloudy
Mostly cloudy, with a low around 64. Northeast wind around 7 mph.
7-day forecast for Triangle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Mostly Cloudy | 7 mph NE | 10% |
| Saturday | 80°F | Partly Sunny | 8 mph NE | 10% |
| Saturday Night | 67°F | Mostly Cloudy | 7 mph SE | 10% |
| Sunday | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 12 mph S | 30% |
| Sunday Night | 67°F | Showers And Thunderstorms Likely | 3 to 9 mph W | 58% |
| Monday | 78°F | Chance Rain Showers | 6 to 9 mph N | 42% |
| Monday Night | 63°F | Chance Rain Showers | 6 to 9 mph NE | 54% |
| Tuesday | 69°F | Rain Showers Likely | 13 mph NE | 64% |
| Tuesday Night | 58°F | Rain Showers Likely | 9 to 13 mph NE | 64% |
| Wednesday | 64°F | Chance Rain Showers | 13 mph NE | 53% |
| Wednesday Night | 57°F | Chance Showers And Thunderstorms | 8 to 12 mph NE | 52% |
| Thursday | 66°F | Chance Showers And Thunderstorms | 12 mph N | 49% |
| Thursday Night | 56°F | Chance Showers And Thunderstorms | 5 to 10 mph N | 35% |
| Friday | 70°F | Slight Chance Rain Showers | 7 to 10 mph N | 22% |
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
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Quantico
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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 Sep 19, 2026.