Dahlgren, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dahlgren, a community in King George County, Virginia.
This Afternoon
86°F
Partly Sunny
Partly sunny, with a high near 86. North wind around 9 mph.
7-day forecast for Dahlgren
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 86°F | Partly Sunny | 9 mph N | 10% |
| Tonight | 67°F | Mostly Cloudy | 8 mph NE | 10% |
| Saturday | 79°F | Partly Sunny | 10 mph NE | 10% |
| Saturday Night | 69°F | Mostly Cloudy | 5 to 8 mph SE | 10% |
| Sunday | 84°F | Mostly Sunny | 5 to 12 mph S | 14% |
| Sunday Night | 70°F | Chance Showers And Thunderstorms | 5 to 9 mph SW | 51% |
| Monday | 78°F | Partly Sunny then Chance Showers And Thunderstorms | 6 to 9 mph N | 44% |
| Monday Night | 66°F | Chance Showers And Thunderstorms | 10 mph NE | 53% |
| Tuesday | 70°F | Showers And Thunderstorms Likely | 10 to 16 mph NE | 62% |
| Tuesday Night | 62°F | Showers And Thunderstorms Likely | 12 to 16 mph NE | 62% |
| Wednesday | 65°F | Chance Rain Showers | 13 to 16 mph NE | 51% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 10 to 16 mph NE | 51% |
| Thursday | 66°F | Chance Showers And Thunderstorms | 14 mph NE | 43% |
| Thursday Night | 59°F | Chance Showers And Thunderstorms | 6 to 12 mph N | 36% |
Forecast source: National Weather Service (api.weather.gov) for Dahlgren (38.342, -77.064). Updated through the day.
Growing snapshot for Dahlgren
Last spring frost
Mar 28
First fall frost
Nov 8
Growing season
226 days
Hardiness zone
7b
More local growing data for Dahlgren: nearby ZIP 22448 weather · frost dates · planting calendar · Virginia frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Quantico Mcas, Va (18.5 mi from Dahlgren). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.