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Sumter County, SC Weather Forecast
Sumter County, SC Weather Forecast Date: 1009 AM EDT Fri Sep 25 2026
The area/counties/county of: Sumter, including the city of Sumter.or toggle through each period.
Rest of Today... Sunny. Highs in the mid 70s. North winds around 10 mph with gusts up to 20 mph.
Tonight... Clear. Lows in the lower 50s. North winds 5 to 10 mph.
Saturday... Sunny. Highs around 80. Northwest winds 5 to 10 mph.
Saturday Night... Mostly clear. Lows in the lower 50s. Northwest winds around 5 mph.
Sunday... Sunny. Highs in the mid 80s. Northwest winds around 5 mph.
Sunday Night... Mostly clear. Lows in the mid 50s.
Monday... Sunny. Highs in the upper 80s.
Monday Night... Clear. Lows in the upper 50s.
Tuesday... Sunny. Highs in the upper 80s.
Tuesday Night... Clear. Lows in the lower 60s.
Wednesday... Sunny. Highs around 90.
Wednesday Night... Mostly clear. Lows in the mid 60s.
POP = Probability of Precipitation
Sumter County Radar Loop
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