Weekend forecast: Turning up the heat
A hot weekend is ahead, especially on Sunday, as high pressure builds in aloft. A few of us could get some relief from a few thunderstorms, but that’s not a guarantee for everyone.
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90°
Feels Like 96°
Mostly Cloudy
- Wind SW at 10 mph
- Pressure 30.10 in.
- Dewpoint 72°F
- Humidity 56%
last updated at 12:25 PM on June 27, 2026
Charleston Weather Discussion
The latest forecast and discussion for the Charleston, SC metro area
Charleston Area NWS Forecast
Forecast for Charleston updated at 7:02 AM on June 27, 2026
- Today Sunny. A slight chance of showers and thunderstorms this morning. Highs in the lower 90s. Heat index values up to 105. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.
- Tonight Mostly clear. Lows in the upper 70s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
- Sunday Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Heat index values up to 110. Southwest winds 10 to 15 mph. Chance of rain 20 percent.
- Sunday Night Partly cloudy with a chance of showers and thunderstorms. Lows in the upper 70s. Southwest winds 10 to 15 mph, diminishing to around 5 mph after midnight. Chance of rain 50 percent. Heat index values up to 105 early in the evening.
- Monday Mostly sunny. A slight chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 90s. West winds around 5 mph, becoming south in the afternoon. Chance of rain 60 percent. Heat index values up to 109.
- Monday Night Partly cloudy with a slight chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 20 percent.
- Tuesday Mostly sunny with a slight chance of showers and thunderstorms. Highs around 90. Chance of rain 20 percent.
- Tuesday Night Mostly clear. Lows in the mid 70s.
- Wednesday Mostly sunny. Highs around 90.
- Wednesday Night Mostly clear. Lows in the mid 70s.
- Thursday Sunny. Highs in the lower 90s.
- Thursday Night Mostly clear. Lows in the upper 70s.
- Friday Sunny. Highs in the mid 90s. Heat index values up to 105.