| NWS Forecast for: Barnwell County Issued by: National Weather Service Columbia, SC Last Update: 308 PM EDT Sun Oct 4 2026 | |
| Tonight: A chance of thunderstorms this evening. Showers likely. Patchy fog. Lows in the mid 60s. Light and variable winds. Chance of rain 70 percent. Monday: Mostly cloudy. Patchy fog in the morning. A chance of showers, mainly in the morning. Highs in the mid 70s. Northeast winds around 5 mph. Chance of rain 50 percent. Monday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 60. Northeast winds around 5 mph. Tuesday: Mostly sunny. Highs in the mid 70s. Northeast winds 5 to 10 mph with gusts up to 20 mph. Tuesday Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the mid 50s. Northeast winds 5 to 10 mph. Wednesday: Sunny. Highs in the upper 70s. Wednesday Night: Partly cloudy. Lows in the lower 50s. Thursday: Mostly sunny. Highs in the lower 80s. Thursday Night: Partly cloudy. Lows in the mid 50s. Friday: Partly sunny. Highs in the lower 80s. Friday Night: Mostly cloudy. Lows in the upper 50s. Saturday: Mostly cloudy with a chance of showers. Highs in the mid 70s. Chance of rain 50 percent. Saturday Night: Mostly cloudy. A chance of showers in the evening, then showers likely after midnight. Lows around 60. Chance of rain 60 percent. Sunday: Showers likely. Highs in the mid 70s. Chance of rain 70 percent. | |
| Zone Forecast: Barnwell County | |
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