Mason Neck, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mason Neck, a community in Fairfax County, Virginia.
Tonight
53°F
Mostly Clear
Mostly clear, with a low around 53. South wind around 5 mph.
7-day forecast for Mason Neck
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Mostly Clear | 5 mph S | 2% |
| Wednesday | 76°F | Patchy Fog then Mostly Sunny | 3 to 9 mph S | 2% |
| Wednesday Night | 63°F | Mostly Cloudy then Chance Light Rain | 7 mph S | 27% |
| Thursday | 77°F | Chance Light Rain | 9 mph S | 27% |
| Thursday Night | 63°F | Light Rain Likely | 2 to 7 mph S | 61% |
| Friday | 72°F | Rain | 5 mph NW | 75% |
| Friday Night | 53°F | Light Rain Likely | 2 to 7 mph NW | 71% |
| Saturday | 67°F | Mostly Sunny | 7 to 10 mph NW | 13% |
| Saturday Night | 46°F | Mostly Clear | 8 mph NW | 13% |
| Sunday | 64°F | Mostly Sunny | 7 mph W | 5% |
| Sunday Night | 44°F | Partly Cloudy then Slight Chance Light Rain | 7 mph NW | 18% |
| Monday | 64°F | Slight Chance Light Rain | 8 to 14 mph W | 22% |
| Monday Night | 42°F | Slight Chance Light Rain | 8 mph W | 22% |
| Tuesday | 67°F | Sunny | 7 to 10 mph W | 11% |
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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Fair Lakes
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Floris
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Greenbriar
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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 Nov 4, 2026.