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City of Barnwell, SCBarnwell, SC 7-Day Weather Forecast
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Barnwell Weather Forecast
Barnwell, SC Weather Forecast Date: 408 PM EDT Tue Sep 08 2026
Weather forecast for Barnwell, SC
Tonight Lo: 69°F Lo: 21°C |
Tonight... Mostly clear. Lows in the upper 60s. East winds 5 to 10 mph. |
Wed Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Wednesday... Mostly sunny. Highs in the lower 90s. East winds around 5 mph. |
Thu Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Thursday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Light and variable winds. Chance of rain 40%. |
| Fri Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Friday... Partly sunny. Showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 60%. |
| Sat Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Saturday... Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 70%. |
| Sun Hi: 90°FHi: 32°C Lo: 71°F Lo: 22°C |
Sunday... Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 50%. |
| Mon Hi: 91°FHi: 33°C Lo: 71°F Lo: 22°C |
Monday... Mostly sunny. Highs in the lower 90s. |
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