Sumter, SC Weather Forecast
Sumter County, South Carolina
Live radar, warnings and storm tracking for Sumter, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Sumter
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Sumter, SC at a glance
Sumter is home to about 42,766 people in Sumter County, across 33 square miles. It ranks 10th by population of 100 places in South Carolina with a forecast here. The nearest neighbour with its own forecast is Manning, 20 miles away.
- County
- Sumter County
- Population
- 42,766 2023 est.
- Land area
- 33 sq mi
- People per sq mi
- 1,295
- Forecast point
- 33.9408°N, 80.3955°W
How well can the network see Sumter?
The nearest Doppler radar is KCAE (Columbia, SC), to the W. Its lowest scan passes about 2,800 ft above Sumter. Close enough to see rotation in the low part of a storm, where tornadoes form. Sumter is closer to its radar than 54% of US cities.
The closest weather station is KSMS (Sumter Muni). Close enough that its readings are the conditions in town.
Forecasts near Sumter
- Manning, SC20 mi
- Bishopville, SC21 mi
- Camden, SC25 mi
- Columbia, SC30 mi
- Forest Acres, SC34 mi
- Hartsville, SC34 mi
- Cayce, SC37 mi
- Lake City, SC37 mi
Elsewhere in South Carolina
CharlestonColumbiaNorth CharlestonMount PleasantRock HillGreenvilleAll South Carolina forecasts →