| NWS Forecast for: Sumter SC Issued by: National Weather Service Columbia, SC Last Update: 2:17 pm EDT Jul 13, 2025 | |
| This Afternoon: A chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 95. Heat index values as high as 105. Calm wind. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Tonight: A chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Monday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 101. Light east wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Monday Night: A chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 74. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Tuesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 92. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Tuesday Night: A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 70%. Wednesday Night: Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 60%. Thursday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 93. Chance of precipitation is 50%. Thursday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 75. Chance of precipitation is 30%. Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 95. Chance of precipitation is 40%. Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Chance of precipitation is 30%. Saturday: A chance of showers and thunderstorms. Mostly sunny, with a high near 96. Chance of precipitation is 40%. | |
| Sumter SC 33.94°N 80.4°W (Elev. 154 ft) | |
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