Mason Neck, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mason Neck, a community in Fairfax County, Virginia.
Today
87°F
Partly Sunny
Partly sunny, with a high near 87. East wind around 6 mph.
7-day forecast for Mason Neck
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Partly Sunny | 6 mph E | 12% |
| Tonight | 72°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 1 to 6 mph E | 68% |
| Wednesday | 88°F | Showers And Thunderstorms Likely | 2 to 6 mph SE | 67% |
| Wednesday Night | 74°F | Chance Showers And Thunderstorms | 6 mph S | 46% |
| Thursday | 92°F | Mostly Sunny | 6 to 10 mph S | 10% |
| Thursday Night | 75°F | Partly Cloudy | 5 to 9 mph SW | 10% |
| Friday | 93°F | Mostly Sunny then Chance Showers And Thunderstorms | 7 mph SW | 32% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 6 mph SW | 41% |
| Saturday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 mph SW | 47% |
| Saturday Night | 73°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 47% |
| Sunday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 mph W | 19% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SW | 19% |
| Monday | 93°F | Mostly Sunny | 5 mph W | 9% |
| Monday Night | 75°F | Partly Cloudy | 5 mph SW | 14% |
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
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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 Aug 4, 2026.