Lake Barcroft, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Barcroft, a community in Fairfax County, Virginia.
Overnight
68°F
Mostly Cloudy
Mostly cloudy, with a low around 68. North wind around 5 mph.
7-day forecast for Lake Barcroft
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Mostly Cloudy | 5 mph N | 0% |
| Tuesday | 86°F | Partly Sunny | 5 to 8 mph NE | 4% |
| Tuesday Night | 71°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 7 mph E | 65% |
| Wednesday | 86°F | Showers And Thunderstorms Likely | 3 to 7 mph SE | 64% |
| Wednesday Night | 73°F | Chance Showers And Thunderstorms | 7 mph S | 54% |
| Thursday | 91°F | Mostly Sunny | 7 to 12 mph S | 13% |
| Thursday Night | 75°F | Slight Chance Showers And Thunderstorms | 6 to 10 mph SW | 15% |
| Friday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 8 mph SW | 36% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 3 to 7 mph SW | 47% |
| Saturday | 90°F | Partly Sunny then Chance Showers And Thunderstorms | 6 mph SW | 53% |
| Saturday Night | 72°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 53% |
| Sunday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph W | 20% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 20% |
| Monday | 92°F | Mostly Sunny | 3 to 7 mph W | 11% |
Forecast source: National Weather Service (api.weather.gov) for Lake Barcroft (38.852, -77.159). Updated through the day.
Growing snapshot for Lake Barcroft
Last spring frost
Apr 9
First fall frost
Oct 31
Growing season
202 days
Hardiness zone
7b
More local growing data for Lake Barcroft: nearby ZIP 22044 weather · frost dates · planting calendar · Virginia frost dates
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Climate data from the nearest NOAA station, Dalecarlia Rsvr, Md (5.7 mi from Lake Barcroft). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.