Sumter, SC Weather & Growing Conditions
This Afternoon
82°F
Sunny
Sunny, with a high near 82. East wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Sunny | 10 mph E | 0% |
| Tonight | 59°F | Mostly Clear then Patchy Fog | 6 to 10 mph E | 1% |
| Wednesday | 84°F | Patchy Fog then Partly Sunny | 7 to 12 mph SE | 3% |
| Wednesday Night | 64°F | Mostly Cloudy then Chance Light Rain | 3 to 10 mph SE | 30% |
| Thursday | 84°F | Chance Light Rain then Chance Showers And Thunderstorms | 3 to 8 mph S | 38% |
| Thursday Night | 65°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 6 mph S | 38% |
| Friday | 81°F | Showers And Thunderstorms Likely | 5 to 9 mph SW | 72% |
| Friday Night | 56°F | Slight Chance T-storms | 1 to 6 mph NW | 19% |
| Saturday | 77°F | Sunny | 6 mph N | 9% |
| Saturday Night | 48°F | Partly Cloudy | 5 mph N | 4% |
| Sunday | 73°F | Mostly Sunny | 5 mph N | 6% |
| Sunday Night | 45°F | Partly Cloudy | 3 mph W | 13% |
| Monday | 71°F | Sunny | 3 to 8 mph NW | 13% |
| Monday Night | 42°F | Slight Chance Light Rain | 5 mph W | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sumter, SC
Last spring frost
Mar 21
First fall frost
Nov 13
Growing season
239 days
Hardiness zone
8b
Explore more for Sumter, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Wedgefield, Sc (5.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.