Charleston Area NWS Forecast
Forecast for Charleston updated at 2:17 AM on September 7, 2026
- Rest Of Tonight Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. Northeast winds around 5 mph. Chance of rain 20 percent.
- Monday Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.
- Monday Night Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
- Tuesday Mostly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the mid 80s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.
- Tuesday Night A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the mid 70s. East winds 15 to 20 mph, diminishing to 5 to 10 mph after midnight. Chance of rain 50 percent.
- Wednesday Mostly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the mid 80s. Chance of rain 50 percent.
- Wednesday Night Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent.
- Thursday Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 50 percent.
- Thursday Night Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent.
- Friday Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 50 percent.
- Friday Night Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 50 percent.
- Saturday Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 50 percent.
- Saturday Night Partly cloudy with a chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 50 percent.
- Sunday Mostly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 40 percent.