Merrifield, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Merrifield, a community in Fairfax County, Virginia.
This Afternoon
71°F
Mostly Sunny
Mostly sunny, with a high near 71. South wind around 8 mph.
7-day forecast for Merrifield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Mostly Sunny | 8 mph S | 2% |
| Tonight | 53°F | Mostly Clear | 6 mph S | 2% |
| Wednesday | 74°F | Mostly Sunny | 5 to 10 mph S | 2% |
| Wednesday Night | 62°F | Mostly Cloudy then Chance Light Rain | 8 mph S | 38% |
| Thursday | 75°F | Chance Light Rain | 10 mph S | 36% |
| Thursday Night | 62°F | Chance Light Rain | 2 to 7 mph SW | 54% |
| Friday | 70°F | Rain Likely | 5 mph NW | 69% |
| Friday Night | 52°F | Light Rain Likely | 2 to 7 mph NW | 69% |
| Saturday | 64°F | Sunny | 8 to 12 mph NW | 10% |
| Saturday Night | 45°F | Partly Cloudy | 8 mph NW | 10% |
| Sunday | 61°F | Mostly Sunny | 5 to 8 mph NW | 7% |
| Sunday Night | 44°F | Partly Cloudy then Slight Chance Light Rain | 3 to 7 mph NW | 16% |
| Monday | 61°F | Slight Chance Light Rain then Mostly Sunny | 7 to 13 mph NW | 16% |
| Monday Night | 42°F | Mostly Clear | 3 to 8 mph W | 8% |
Forecast source: National Weather Service (api.weather.gov) for Merrifield (38.872, -77.240). Updated through the day.
Growing snapshot for Merrifield
Last spring frost
Apr 14
First fall frost
Oct 29
Growing season
198 days
Hardiness zone
7b
More local growing data for Merrifield: nearby ZIP 22031 weather · frost dates · planting calendar · Virginia frost dates
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Climate data from the nearest NOAA station, Vienna, Va (2.8 mi from Merrifield). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.