Joanna, SC Weather & Growing Conditions
Overnight
58°F
Partly Cloudy
Partly cloudy, with a low around 58. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Partly Cloudy | 5 mph E | 1% |
| Wednesday | 76°F | Mostly Cloudy then Slight Chance Rain Showers | 3 to 8 mph SE | 34% |
| Wednesday Night | 64°F | Showers And Thunderstorms Likely | 6 mph SSE | 69% |
| Thursday | 76°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 to 6 mph SSW | 51% |
| Thursday Night | 61°F | Chance Showers And Thunderstorms | 2 mph SSW | 50% |
| Friday | 76°F | Chance Showers And Thunderstorms | 5 mph WSW | 47% |
| Friday Night | 52°F | Mostly Clear | 3 mph NW | 9% |
| Saturday | 72°F | Sunny | 3 mph N | 5% |
| Saturday Night | 46°F | Partly Cloudy | 3 mph NNE | 2% |
| Sunday | 67°F | Mostly Sunny | 3 mph NNW | 5% |
| Sunday Night | 43°F | Mostly Clear | 3 mph WNW | 13% |
| Monday | 66°F | Sunny | 5 mph WNW | 13% |
| Monday Night | 40°F | Mostly Clear | 2 mph WSW | 2% |
| Tuesday | 68°F | Sunny | 2 to 6 mph WSW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Joanna, SC
Last spring frost
Mar 29
First fall frost
Nov 4
Growing season
219 days
Hardiness zone
8a
Explore more for Joanna, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Clinton, Sc (5.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.