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Sweetwater Lake, SC Weather Forecast
Sweetwater Lake, SC Weather Forecast Date: 108 AM EDT Thu Aug 06 2026
The area/counties/county of: Calhoun, including the city of St. Matthews.or toggle through each period.
Rest of Tonight... Partly cloudy. Near steady temperature in the mid 70s. South winds around 5 mph.
Thursday... Partly sunny. Patchy fog in the morning. A chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. South winds around 5 mph. Chance of rain 50%.
Thursday Night... Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Humid with lows in the lower 70s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 40%.
Friday... Partly sunny. A chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 90s. South winds around 5 mph. Chance of rain 50%.
Friday Night... Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 70s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 50%.
Saturday... Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40%.
Saturday Night... Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 70s. Chance of rain 40%.
Sunday... Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40%.
Sunday Night... Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 70s. Chance of rain 40%.
Monday... Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 30%.
Monday Night... Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 70s. Chance of rain 30%.
Tuesday... Mostly sunny. Highs in the mid 90s.
Tuesday Night... Partly cloudy. Lows in the mid 70s.
POP = Probability of Precipitation
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