One Loudoun, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for One Loudoun, a community in Loudoun County, Virginia.
This Afternoon
73°F
Sunny
Sunny. High near 73, with temperatures falling to around 65 in the afternoon. Southeast wind around 7 mph.
7-day forecast for One Loudoun
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Sunny | 7 mph SE | 2% |
| Tonight | 51°F | Mostly Clear | 6 mph S | 2% |
| Wednesday | 75°F | Mostly Sunny | 5 to 12 mph S | 2% |
| Wednesday Night | 61°F | Mostly Cloudy then Light Rain Likely | 9 mph S | 58% |
| Thursday | 75°F | Chance Light Rain | 8 to 12 mph S | 50% |
| Thursday Night | 60°F | Chance Light Rain | 2 to 8 mph SW | 48% |
| Friday | 70°F | Rain Likely | 5 mph N | 59% |
| Friday Night | 49°F | Light Rain Likely | 1 to 6 mph NW | 55% |
| Saturday | 64°F | Mostly Sunny | 7 to 12 mph NW | 10% |
| Saturday Night | 41°F | Partly Cloudy | 5 to 9 mph NW | 10% |
| Sunday | 61°F | Mostly Sunny | 5 to 8 mph NW | 7% |
| Sunday Night | 40°F | Partly Cloudy then Slight Chance Light Rain | 5 to 8 mph NW | 19% |
| Monday | 61°F | Slight Chance Light Rain | 8 to 15 mph NW | 20% |
| Monday Night | 38°F | Slight Chance Light Rain | 3 to 9 mph W | 20% |
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
Aldie
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 Nov 4, 2026.