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Town of Summerville, SCSummerville, SC 7-Day Night Weather Forecast
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Summerville, SC Weather Forecast
Summerville, SC Weather Forecast Date: 915 PM EDT Wed Aug 12 2026
The area/counties/county of: Dorchester, including the cities of: Saint George and Summerville.or toggle through each period.
Tonight... Mostly clear. Lows in the mid 70s. West winds around 5 mph.
Thursday... Sunny. Highs in the upper 90s. Heat index values up to 111. West winds around 5 mph.
Thursday Night... Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the upper 70s. Heat index values up to 107 early in the evening. Southwest winds around 5 mph. Chance of rain 20%.
Friday... Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Southwest winds around 5 mph. Chance of rain 20%. Heat index values up to 112.
Friday Night... Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the upper 70s. Southwest winds around 5 mph. Chance of rain 20%. Heat index values up to 107 early in the evening.
Saturday... Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 90s. Chance of rain 30%. Heat index values up to 115.
Saturday Night... Partly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 20%. Heat index values up to 105 early in the evening.
Sunday... Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 20%. Heat index values up to 105.
Sunday Night... Mostly clear with a slight chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 20%. Heat index values up to 105 early in the evening.
Monday... Sunny. Highs in the upper 90s. Heat index values up to 110.
Monday Night... Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening.
Tuesday... Sunny with a chance of showers and thunderstorms. Hot with highs around 100. Chance of rain 30%. Heat index values up to 110.
Tuesday Night... Partly cloudy with a chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 40%. Heat index values up to 110 early in the evening.
POP = Probability of Precipitation
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