New Castle, VA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for New Castle, a town in Botetourt County, Virginia.
Today
71°F
Mostly Cloudy
Mostly cloudy, with a high near 71. South wind 0 to 6 mph.
7-day forecast for New Castle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Mostly Cloudy | 0 to 6 mph S | 1% |
| Tonight | 61°F | Rain Showers | 2 mph SE | 78% |
| Thursday | 77°F | Chance Rain Showers | 1 to 5 mph S | 31% |
| Thursday Night | 55°F | Slight Chance Rain Showers | 1 mph W | 24% |
| Friday | 72°F | Slight Chance Rain Showers | 1 to 5 mph NW | 24% |
| Friday Night | 46°F | Mostly Clear | 6 mph NW | 7% |
| Saturday | 61°F | Mostly Sunny | 6 to 10 mph NW | 4% |
| Saturday Night | 39°F | Partly Cloudy | 6 to 9 mph NW | 3% |
| Sunday | 62°F | Mostly Sunny | 7 mph NW | 3% |
| Sunday Night | 38°F | Mostly Clear | 8 mph NW | 3% |
| Monday | 62°F | Sunny | 9 mph NW | 2% |
| Monday Night | 38°F | Mostly Clear | 7 mph W | 2% |
| Tuesday | 67°F | Sunny | 5 to 8 mph W | 1% |
| Tuesday Night | 40°F | Mostly Clear | 6 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for New Castle (37.501, -80.111). Updated through the day.
Growing snapshot for New Castle
Last spring frost
Apr 11
First fall frost
Oct 28
Growing season
198 days
Hardiness zone
7b
More local growing data for New Castle: nearby ZIP 24175 weather · frost dates · planting calendar · Virginia frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Roanoke 8 N, Va (7.7 mi from New Castle). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.