Weekend forecast: Warm and muggy as thunderstorm chances return
An upper low stalling out over Florida combined with an approaching (then stalling) front will help turn things a little more unsettled this weekend.
Read more »Currently
75°
Feels Like 76°
Clear
- Wind West at 5 mph
- Pressure 30.01 in.
- Dewpoint 70°F
- Humidity 83%
last updated at 2:45 AM on September 19, 2026
Charleston Weather Discussion
The latest forecast and discussion for the Charleston, SC metro area
Charleston Area NWS Forecast
Forecast for Charleston updated at 2:27 AM on September 19, 2026
- Rest Of Tonight Mostly clear. Lows in the lower 70s. West winds around 5 mph.
- Saturday Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Northwest winds around 5 mph, becoming east in the afternoon. Chance of rain 50 percent.
- Saturday Night Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Lows in the lower 70s. East winds around 5 mph in the evening, becoming light and variable. Chance of rain 50 percent.
- Sunday 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 around 5 mph. Chance of rain 50 percent.
- Sunday Night Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the lower 70s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent.
- Monday Mostly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 20 percent.
- Monday Night Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the mid 70s. Chance of rain 50 percent.
- Tuesday Showers likely with a chance of thunderstorms. Highs in the mid 80s. Chance of rain 70 percent.
- Tuesday Night Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50 percent.
- Wednesday Partly sunny with a chance of showers and thunderstorms. Highs in the lower 80s. Chance of rain 50 percent.
- Wednesday Night Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 60s. Chance of rain 20 percent.
- Thursday Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 80s. Chance of rain 20 percent.
- Thursday Night Partly cloudy. Lows in the upper 60s.
- Friday Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 80s. Chance of rain 20 percent.