Joanna, SC Weather & Growing Conditions
Today
77°F
Mostly Cloudy then Slight Chance Light Rain
A slight chance of rain after 4pm. Mostly cloudy, with a high near 77. Southeast wind 3 to 8 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 |
|---|---|---|---|---|
| Today | 77°F | Mostly Cloudy then Slight Chance Light Rain | 3 to 8 mph SE | 20% |
| Tonight | 63°F | Light Rain Likely | 6 mph SE | 67% |
| Thursday | 77°F | Chance Light Rain then Slight Chance T-storms | 1 to 5 mph S | 30% |
| Thursday Night | 61°F | Chance Light Rain | 1 mph SW | 46% |
| Friday | 75°F | Light Rain Likely | 3 mph W | 56% |
| Friday Night | 51°F | Mostly Clear | 3 mph NW | 6% |
| Saturday | 70°F | Sunny | 5 mph N | 1% |
| Saturday Night | 42°F | Partly Cloudy | 2 mph N | 1% |
| Sunday | 66°F | Mostly Sunny | 2 mph N | 0% |
| Sunday Night | 40°F | Mostly Clear | 1 mph NW | 1% |
| Monday | 67°F | Sunny | 2 mph NW | 1% |
| Monday Night | 39°F | Mostly Clear | 0 mph | 2% |
| Tuesday | 68°F | Sunny | 0 to 3 mph W | 4% |
| Tuesday Night | 42°F | Mostly Clear | 1 mph W | 4% |
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 Nov 4, 2026.