| NWS Forecast for: Sumter SC Issued by: National Weather Service Columbia, SC Last Update: 8:07 pm EDT Jul 15, 2025 |  |
| Tonight: Partly cloudy, with a low around 74. Southeast wind around 5 mph becoming calm in the evening. Wednesday: A chance of showers and thunderstorms, mainly between noon and 5pm. Mostly sunny, with a high near 91. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 40%. Wednesday Night: Mostly clear, with a low around 75. South wind 3 to 6 mph. Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 93. Heat index values as high as 102. Southwest wind 5 to 7 mph. Chance of precipitation is 30%. Thursday Night: A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75. South wind around 6 mph. Chance of precipitation is 30%. Friday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 96. Chance of precipitation is 30%. Friday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77. Chance of precipitation is 30%. Saturday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Chance of precipitation is 30%. Saturday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77. Chance of precipitation is 30%. Sunday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. Chance of precipitation is 30%. Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Chance of precipitation is 30%. Monday: A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 97. Chance of precipitation is 50%. Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Chance of precipitation is 40%. Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 93. Chance of precipitation is 50%. | |
| Sumter SC 33.94°N 80.4°W (Elev. 154 ft) | |
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