Mason Neck, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mason Neck, a community in Fairfax County, Virginia.
This Afternoon
87°F
Mostly Sunny
Mostly sunny, with a high near 87. North wind around 10 mph.
7-day forecast for Mason Neck
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 87°F | Mostly Sunny | 10 mph N | 10% |
| Tonight | 65°F | Mostly Cloudy | 6 to 9 mph N | 10% |
| Saturday | 81°F | Partly Sunny | 8 mph NE | 10% |
| Saturday Night | 68°F | Mostly Cloudy | 7 mph SE | 10% |
| Sunday | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 13 mph S | 35% |
| Sunday Night | 68°F | Showers And Thunderstorms Likely | 5 to 9 mph NW | 60% |
| Monday | 78°F | Chance Rain Showers | 7 to 10 mph NE | 41% |
| Monday Night | 64°F | Rain Showers Likely | 7 to 10 mph NE | 55% |
| Tuesday | 69°F | Rain Showers Likely | 14 mph NE | 61% |
| Tuesday Night | 60°F | Rain Showers Likely | 14 mph NE | 61% |
| Wednesday | 64°F | Chance Rain Showers | 14 mph NE | 50% |
| Wednesday Night | 59°F | Chance Showers And Thunderstorms | 9 to 13 mph NE | 50% |
| Thursday | 66°F | Chance Showers And Thunderstorms | 13 mph NE | 48% |
| Thursday Night | 57°F | Chance Showers And Thunderstorms | 6 to 10 mph N | 34% |
Forecast source: National Weather Service (api.weather.gov) for Mason Neck (38.651, -77.171). Updated through the day.
Growing snapshot for Mason Neck
Last spring frost
Mar 28
First fall frost
Nov 8
Growing season
226 days
Hardiness zone
7b
More local growing data for Mason Neck: nearby ZIP 22079 weather · frost dates · planting calendar · Virginia frost dates
Nearby towns & communities
Annandale
Bailey's Crossroads
Belle Haven
Braddock
Bull Run
Burke
Burke Centre
Centreville
Chantilly
Clifton
Crosspointe
Difficult Run
Dranesville
Dunn Loring
Fair Lakes
Fair Oaks
Fairfax
Fairfax Station
Floris
Fort Belvoir
Fort Hunt
Franconia
Franklin Farm
George Mason
Great Falls
Great Falls Crossing
Greenbriar
Groveton
Hayfield
Herndon
Climate data from the nearest NOAA station, Quantico Mcas, Va (13.2 mi from Mason Neck). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.