Castalia, NC Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Castalia, a town in Franklin County, North Carolina.
Tonight
69°F
Chance Showers And Thunderstorms then Mostly Cloudy
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 69. Northeast wind around 2 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Castalia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 69°F | Chance Showers And Thunderstorms then Mostly Cloudy | 2 mph NE | 28% |
| Saturday | 83°F | Slight Chance Rain Showers | 3 to 7 mph NE | 20% |
| Saturday Night | 67°F | Partly Cloudy | 0 to 6 mph NE | 10% |
| Sunday | 88°F | Mostly Sunny | 2 mph E | 8% |
| Sunday Night | 69°F | Mostly Clear | 1 mph SW | 4% |
| Monday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph N | 54% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph NE | 60% |
| Tuesday | 80°F | Showers And Thunderstorms Likely | 3 to 9 mph NE | 63% |
| Tuesday Night | 65°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 7 to 12 mph NE | 63% |
| Wednesday | 72°F | Chance Rain Showers | 13 mph NE | 37% |
| Wednesday Night | 61°F | Chance Showers And Thunderstorms | 8 to 14 mph N | 35% |
| Thursday | 73°F | Chance Showers And Thunderstorms | 13 mph N | 25% |
| Thursday Night | 59°F | Chance Showers And Thunderstorms | 5 to 10 mph N | 25% |
| Friday | 75°F | Slight Chance Rain Showers | 9 mph N | 15% |
Forecast source: National Weather Service (api.weather.gov) for Castalia (36.082, -78.058). Updated through the day.
Growing snapshot for Castalia
Last spring frost
Apr 11
First fall frost
Oct 29
Growing season
201 days
Hardiness zone
8a
More local growing data for Castalia: nearby ZIP 27816 weather · frost dates · planting calendar · North Carolina frost dates
Nearby towns & communities
All North Carolina locations ›
Climate data from the nearest NOAA station, Louisburg, Nc (12.9 mi from Castalia). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.