Duncan, SC 7-Day Night Weather Forecast
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Duncan, SC Weather Forecast


Duncan, SC Weather Forecast Date: 558 AM EDT Sun Sep 20 2026
The area/counties/county of: Northern Spartanburg, including the cities of: Boiling Springs Sc, Fingerville, Duncan, Lyman, Landrum, Wellford, and Inman.or toggle through each period.
Today... Patchy fog this morning. Partly sunny this morning, then mostly sunny with a chance of showers and thunderstorms this afternoon. Highs in the upper 80s. Light and variable winds, becoming south around 5 mph this afternoon. Chance of rain 50%.
Tonight... Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 60s. Northwest winds around 5 mph in the evening, becoming light and variable. Chance of rain 40%.
Monday... Mostly sunny. Patchy fog in the morning. A chance of showers and thunderstorms in the afternoon. Humid with highs around 90. Light and variable winds, becoming south around 5 mph in the afternoon. Chance of rain 40%.
Monday Night... A chance of thunderstorms in the evening. Showers likely. Lows in the upper 60s. South winds around 5 mph, becoming north after midnight. Chance of rain 70%.
Tuesday... Partly sunny. A chance of showers in the morning, then showers with a chance of thunderstorms in the afternoon. Humid with highs in the lower 80s. Northeast winds around 5 mph. Chance of rain 80%.
Tuesday Night... Showers with a chance of thunderstorms in the evening, then showers likely after midnight. Lows in the lower 60s. Chance of rain 80%.
Wednesday... Mostly cloudy. Showers likely, mainly in the morning. Highs in the lower 70s. Chance of rain 60%.
Wednesday Night... Mostly cloudy with a chance of showers. Lows in the upper 50s. Chance of rain 50%.
Thursday... Partly sunny. Highs in the lower 70s.
Thursday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s.
Friday... Partly sunny in the morning, then becoming mostly sunny. Highs in the mid 70s.
Friday Night... Partly cloudy. Lows in the mid 50s.
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