Castalia, NC Weather & Growing Conditions
Overnight
69°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 4am, then patchy fog and a slight chance of rain showers. Partly cloudy, with a low around 69. Northeast wind 0 to 3 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 69°F | Slight Chance Showers And Thunderstorms | 0 to 3 mph NE | 22% |
| Saturday | 83°F | Patchy Fog then Mostly Sunny | 3 to 7 mph NE | 16% |
| Saturday Night | 67°F | Mostly Clear | 0 to 6 mph NE | 7% |
| Sunday | 87°F | Mostly Sunny | 1 mph SE | 2% |
| Sunday Night | 69°F | Mostly Clear | 1 mph SW | 6% |
| Monday | 89°F | Partly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph NW | 56% |
| Monday Night | 68°F | Showers And Thunderstorms Likely | 2 to 6 mph NE | 57% |
| Tuesday | 80°F | Showers And Thunderstorms Likely | 5 to 9 mph NE | 62% |
| Tuesday Night | 65°F | Showers And Thunderstorms Likely | 7 to 12 mph NE | 62% |
| Wednesday | 72°F | Chance Showers And Thunderstorms | 13 mph N | 49% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 9 to 13 mph N | 49% |
| Thursday | 72°F | Chance Rain Showers | 13 mph N | 34% |
| Thursday Night | 59°F | Chance Rain Showers | 5 to 13 mph N | 25% |
| Friday | 75°F | Partly Sunny | 8 mph N | 14% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Castalia, NC
Last spring frost
Apr 11
First fall frost
Oct 29
Growing season
201 days
Hardiness zone
8a
Explore more for Castalia, NC: full frost dates · planting calendar · North Carolina frost dates
Climate data from the nearest NOAA station, Louisburg, Nc (12.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.