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Jack Lake, SC Weather Forecast
Jack Lake, SC Weather Forecast Date: 807 AM EDT Thu Sep 10 2026
The area/counties/county of: Marion, including the cities of: Marion and Mullins.or toggle through each period.
Today... Sunny. Patchy fog this morning. A slight chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Light and variable winds, becoming southwest around 5 mph this afternoon. Chance of rain 20%.
Tonight... Mostly clear with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows in the lower 70s. South winds around 5 mph. Chance of rain 20%.
Friday... Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Southwest winds around 5 mph. Chance of rain 50%. Heat index values up to 105.
Friday Night... Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the lower 70s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 50%.
Saturday... Partly sunny with a chance of showers with a slight chance of thunderstorms in the morning, then showers with a chance of thunderstorms in the afternoon. Highs around 90. Light and variable winds, becoming south around 5 mph in the afternoon. Chance of rain 80%.
Saturday Night... Mostly cloudy. Showers with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 70s. Chance of rain 80%.
Sunday... Partly sunny. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs around 90. Chance of rain 70%.
Sunday Night... Mostly cloudy in the evening, then becoming partly cloudy. A chance of thunderstorms. Showers likely, mainly in the evening. Lows in the lower 70s. Chance of rain 70%.
Monday... Partly cloudy. Highs around 90. Lows around 70.
Tuesday... Partly cloudy. Highs around 90. Lows around 70.
Tuesday Night... Mostly clear. Lows in the upper 60s. Highs around 90.
POP = Probability of Precipitation
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