Fair Oaks, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fair Oaks, a community in Fairfax County, Virginia.
Today
79°F
Partly Sunny
Partly sunny, with a high near 79. East wind around 5 mph.
7-day forecast for Fair Oaks
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Partly Sunny | 5 mph E | 8% |
| Tonight | 65°F | Mostly Cloudy | 7 mph SE | 12% |
| Sunday | 84°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 7 to 12 mph S | 40% |
| Sunday Night | 63°F | Showers And Thunderstorms Likely | 3 to 12 mph NW | 69% |
| Monday | 71°F | Chance Rain Showers | 7 to 12 mph N | 35% |
| Monday Night | 58°F | Chance Rain Showers | 5 to 9 mph NE | 46% |
| Tuesday | 65°F | Rain Showers Likely | 13 mph NE | 62% |
| Tuesday Night | 54°F | Rain Showers Likely | 13 mph NE | 62% |
| Wednesday | 61°F | Chance Rain Showers | 13 mph NE | 52% |
| Wednesday Night | 54°F | Chance Showers And Thunderstorms | 12 mph NE | 48% |
| Thursday | 63°F | Chance Showers And Thunderstorms | 13 mph NE | 45% |
| Thursday Night | 53°F | Chance Showers And Thunderstorms | 7 to 10 mph N | 39% |
| Friday | 67°F | Slight Chance Rain Showers | 10 mph N | 20% |
| Friday Night | 52°F | Slight Chance Rain Showers | 6 to 10 mph N | 15% |
Forecast source: National Weather Service (api.weather.gov) for Fair Oaks (38.865, -77.357). Updated through the day.
Growing snapshot for Fair Oaks
Last spring frost
Apr 14
First fall frost
Oct 29
Growing season
198 days
Hardiness zone
7b
More local growing data for Fair Oaks: nearby ZIP 22035 weather · frost dates · planting calendar · Virginia frost dates
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Climate data from the nearest NOAA station, Vienna, Va (4.7 mi from Fair Oaks). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.