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
83°F
Mostly Cloudy then Chance Showers And Thunderstorms
A slight chance of rain showers between 1pm and 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 83. East wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for New Castle
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Cloudy then Chance Showers And Thunderstorms | 6 mph E | 50% |
| Tonight | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph NE | 66% |
| Wednesday | 85°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 73% |
| Wednesday Night | 69°F | Showers And Thunderstorms Likely then Mostly Cloudy | 0 to 5 mph SE | 60% |
| Thursday | 88°F | Partly Sunny then Showers And Thunderstorms | 0 to 5 mph S | 77% |
| Thursday Night | 68°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 3 mph SW | 77% |
| Friday | 89°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 3 mph SW | 68% |
| Friday Night | 68°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 mph W | 68% |
| Saturday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph NW | 50% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 3 mph W | 50% |
| Sunday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 mph W | 25% |
| Sunday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 mph W | 25% |
| Monday | 91°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 5 mph W | 18% |
| Monday Night | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph W | 18% |
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 Aug 4, 2026.