New Castle, VA Weather & Growing Conditions
Tonight
66°F
Mostly Cloudy then Slight Chance Rain Showers
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 66. Northeast wind 2 to 6 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 6 mph NE | 24% |
| Saturday | 73°F | Chance Rain Showers | 5 mph E | 30% |
| Saturday Night | 65°F | Mostly Cloudy | 2 to 6 mph SE | 7% |
| Sunday | 76°F | Mostly Cloudy then Showers And Thunderstorms Likely | 3 mph S | 61% |
| Sunday Night | 64°F | Showers And Thunderstorms Likely | 6 mph W | 61% |
| Monday | 79°F | Slight Chance Showers And Thunderstorms | 3 mph N | 84% |
| Monday Night | 62°F | Showers And Thunderstorms | 6 mph E | 84% |
| Tuesday | 66°F | Showers And Thunderstorms | 3 to 7 mph E | 75% |
| Tuesday Night | 56°F | Showers And Thunderstorms | 9 mph E | 75% |
| Wednesday | 60°F | Rain Showers Likely | 9 mph NE | 57% |
| Wednesday Night | 54°F | Chance Rain Showers | 8 mph NE | 43% |
| Thursday | 62°F | Chance Rain Showers | 7 mph NE | 33% |
| Thursday Night | 53°F | Chance Rain Showers | 6 mph N | 33% |
| Friday | 67°F | Partly Sunny then Slight Chance Rain Showers | 6 mph N | 23% |
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
7b
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 (7.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.