New Castle, VA Weather & Growing Conditions
Tonight
65°F
Slight Chance Rain Showers
A slight chance of rain showers before 3am, then patchy fog. Mostly cloudy, with a low around 65. South wind around 2 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 65°F | Slight Chance Rain Showers | 2 mph S | 21% |
| Sunday | 86°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 3 mph SW | 49% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph W | 18% |
| Monday | 80°F | Showers And Thunderstorms | 0 to 3 mph S | 91% |
| Monday Night | 62°F | Showers And Thunderstorms | 5 mph E | 91% |
| Tuesday | 69°F | Showers And Thunderstorms | 5 mph E | 78% |
| Tuesday Night | 57°F | Showers And Thunderstorms | 7 mph E | 78% |
| Wednesday | 59°F | Rain Showers Likely | 7 mph E | 62% |
| Wednesday Night | 54°F | Rain Showers Likely | 7 mph E | 66% |
| Thursday | 60°F | Rain Showers Likely | 6 mph E | 66% |
| Thursday Night | 52°F | Slight Chance Rain Showers | 5 mph NE | 23% |
| Friday | 69°F | Slight Chance Rain Showers | 2 to 6 mph N | 20% |
| Friday Night | 51°F | Slight Chance Rain Showers then Partly Cloudy | 2 to 6 mph N | 20% |
| Saturday | 69°F | Mostly Sunny | 6 mph N | 8% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for New Castle, VA
Last spring frost
Apr 11
First fall frost
Oct 28
Growing season
198 days
Hardiness zone
7a
Explore more for New Castle, VA: full frost dates · planting calendar · Virginia frost dates
Climate data from the nearest NOAA station, Roanoke 8 N, Va (16.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.