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Johnston, SC Weather Forecast
Johnston, SC Weather Forecast Date: 708 AM EDT Wed Sep 09 2026
The area/counties/county of: Edgefield, including the cities of: Edgefield, Johnston, and Murphys Estates.or toggle through each period.
Today... Sunny. Highs around 90. East winds around 5 mph.
Tonight... Mostly clear. Lows around 70. Southeast winds around 5 mph.
Thursday... Mostly sunny. Highs in the lower 90s. Light and variable winds, becoming southwest around 5 mph in the afternoon.
Thursday Night... Partly cloudy in the evening, then clearing. Lows in the lower 70s. Southwest winds around 5 mph.
Friday... Sunny in the morning, then partly sunny with showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 90s. Southwest winds around 5 mph. Chance of rain 70%.
Friday Night... Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 70s. Chance of rain 70%.
Saturday... Partly sunny with a chance of showers in the morning, then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 70%.
Saturday Night... Showers likely with a chance of thunderstorms. Lows in the lower 70s. Chance of rain 70%.
Sunday... Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs around 90. Chance of rain 50%.
Sunday Night... Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 70s. Chance of rain 50%.
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 with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 70s. Chance of rain 30%.
POP = Probability of Precipitation
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