Harman US

South Sumter, SC Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for South Sumter, a community in Sumter County, South Carolina.

Overnight
71°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 3am. Mostly cloudy, with a low around 71. North wind around 1 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for South Sumter

WhenTempForecastWindPrecip
Overnight 71°F Slight Chance Showers And Thunderstorms 1 mph N 20%
Saturday 92°F Patchy Fog then Chance Showers And Thunderstorms 0 to 3 mph N 39%
Saturday Night 71°F Chance Showers And Thunderstorms then Partly Cloudy 0 to 5 mph NE 32%
Sunday 91°F Mostly Sunny then Chance Showers And Thunderstorms 2 mph NE 28%
Sunday Night 71°F Chance Showers And Thunderstorms then Partly Cloudy 2 mph E 28%
Monday 92°F Mostly Sunny then Chance Showers And Thunderstorms 2 mph E 38%
Monday Night 71°F Chance Showers And Thunderstorms 2 mph E 38%
Tuesday 88°F Chance Rain Showers then Chance Showers And Thunderstorms 1 to 6 mph NE 54%
Tuesday Night 69°F Chance Showers And Thunderstorms 3 to 9 mph NE 54%
Wednesday 84°F Partly Sunny then Chance Showers And Thunderstorms 9 to 14 mph NE 31%
Wednesday Night 66°F Chance Showers And Thunderstorms then Partly Cloudy 9 to 14 mph NE 31%
Thursday 83°F Partly Sunny 13 mph NE 13%
Thursday Night 64°F Slight Chance Showers And Thunderstorms 5 to 12 mph NE 15%
Friday 83°F Mostly Sunny 7 to 10 mph N 9%

Forecast source: National Weather Service (api.weather.gov) for South Sumter (33.885, -80.338). Updated through the day.

Growing snapshot for South Sumter

Last spring frost
Mar 24
First fall frost
Nov 7
Growing season
230 days
Hardiness zone
8b

More local growing data for South Sumter: nearby ZIP 29150 weather · frost dates · planting calendar · South Carolina frost dates

Nearby towns & communities

All South Carolina locations ›

Climate data from the nearest NOAA station, Sumter, Sc (8.4 mi from South Sumter). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.