Charleston Area NWS Forecast
Forecast for Charleston updated at 5:37 AM on March 21, 2026
- Today Sunny. Highs in the lower 80s, except in the upper 70s near the coast. West winds 5 to 10 mph.
- Tonight Partly cloudy in the evening, then clearing. Lows in the lower 60s. Southwest winds 5 to 10 mph.
- Sunday Sunny. Highs in the mid 80s, except around 80 near the coast. Southwest winds 5 to 10 mph.
- Sunday Night Mostly clear. Lows in the lower 60s. Southwest winds 5 to 10 mph with gusts up to 20 mph.
- Monday Sunny. A slight chance of showers in the afternoon. Highs in the mid 80s, except in the lower 80s near the coast. West winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent.
- Monday Night Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the lower 50s. Chance of rain 20 percent.
- Tuesday Partly sunny. Much cooler with highs in the mid 60s.
- Tuesday Night Mostly cloudy with a 20 percent chance of showers. Lows in the lower 50s.
- Wednesday Partly sunny with a 20 percent chance of showers. Highs around 70.
- Wednesday Night Partly cloudy. Lows in the mid 50s.
- Thursday Mostly sunny. Highs in the mid 70s.
- Thursday Night Mostly clear. Lows in the upper 50s.
- Friday Sunny. Highs in the lower 80s.