Joanna, SC Weather & Growing Conditions
This Afternoon
89°F
Mostly Sunny
Mostly sunny, with a high near 89. Northeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 89°F | Mostly Sunny | 3 mph NE | 11% |
| Tonight | 70°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph NE | 24% |
| Sunday | 88°F | Patchy Fog then Mostly Sunny | 1 mph NE | 8% |
| Sunday Night | 69°F | Mostly Clear | 0 mph | 12% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 mph SE | 27% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 mph E | 67% |
| Tuesday | 82°F | Showers And Thunderstorms Likely | 5 mph NE | 66% |
| Tuesday Night | 66°F | Showers And Thunderstorms Likely | 7 mph NE | 66% |
| Wednesday | 74°F | Chance Rain Showers | 9 mph NE | 39% |
| Wednesday Night | 62°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 31% |
| Thursday | 76°F | Mostly Sunny | 8 mph NE | 13% |
| Thursday Night | 60°F | Partly Cloudy | 3 to 7 mph NE | 11% |
| Friday | 77°F | Mostly Sunny | 5 mph NE | 7% |
| Friday Night | 59°F | Partly Cloudy | 3 mph NE | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Joanna, SC
Last spring frost
Mar 31
First fall frost
Nov 7
Growing season
223 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, Newberry, Sc (8.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.