One Loudoun, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for One Loudoun, a community in Loudoun County, Virginia.
Today
79°F
Partly Sunny
Partly sunny, with a high near 79. East wind around 6 mph.
7-day forecast for One Loudoun
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Partly Sunny | 6 mph E | 9% |
| Tonight | 64°F | Mostly Cloudy then Slight Chance Rain Showers | 8 mph SE | 15% |
| Sunday | 84°F | Chance Rain Showers | 8 to 13 mph S | 43% |
| Sunday Night | 60°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 to 10 mph W | 70% |
| Monday | 70°F | Chance Rain Showers | 7 to 10 mph N | 39% |
| Monday Night | 55°F | Chance Rain Showers | 6 to 9 mph NE | 47% |
| Tuesday | 64°F | Rain Showers Likely | 13 mph NE | 64% |
| Tuesday Night | 52°F | Rain Showers Likely | 13 mph NE | 64% |
| Wednesday | 60°F | Chance Rain Showers | 13 mph NE | 53% |
| Wednesday Night | 52°F | Chance Showers And Thunderstorms | 12 mph NE | 47% |
| Thursday | 62°F | Chance Showers And Thunderstorms | 13 mph NE | 45% |
| Thursday Night | 51°F | Chance Showers And Thunderstorms | 6 to 10 mph N | 39% |
| Friday | 68°F | Slight Chance Rain Showers | 12 mph N | 20% |
| Friday Night | 50°F | Mostly Cloudy | 6 to 10 mph N | 14% |
Forecast source: National Weather Service (api.weather.gov) for One Loudoun (39.050, -77.455). Updated through the day.
Growing snapshot for One Loudoun
Last spring frost
Apr 13
First fall frost
Oct 26
Growing season
195 days
Hardiness zone
7a
More local growing data for One Loudoun: nearby ZIP 20147 weather · frost dates · planting calendar · Virginia frost dates
Nearby towns & communities
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Arcola
Ashburn
Belmont
Brambleton
Broadlands
Cascades
Countryside
Dulles Town Center
Goose Creek Village
Hamilton
Hillsboro
Kincora
Lansdowne
Leesburg
Loudoun Valley Estates
Lovettsville
Lowes Island
Middleburg
Moorefield
Oak Grove
Purcellville
Round Hill
South Riding
Sterling
Stone Ridge
Sugarland Run
University Center
Upperville
Waterford
Climate data from the nearest NOAA station, Wfo Sterling, Va (4.6 mi from One Loudoun). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.