Labor Day weekend: Steamy then stormy
Labor Day weekend will get off to a hot start with Heat Advisory-level heat indices expected Saturday. From there, we’ll turn more unsettled as we get into Sunday as a front moves through the area.
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81°
Feels Like 87°
Clear
- Wind SW at 6 mph
- Pressure 29.98 in.
- Dewpoint 77°F
- Humidity 89%
last updated at 10:50 PM on September 4, 2026
Weather Alerts
Issued by the National Weather Service, last updated at 11:10 PM on September 4, 2026
- Heat Advisoryfor Effingham; Inland Chatham; Coastal Chatham; Hampton; Inland Colleton; Dorchester; Inland Berkeley; Inland Jasper; Beaufort; Coastal Colleton; Charleston; Coastal Jasper; Tidal Berkeley from 11:00 AM on September 5, 2026 until 8:00 PM on September 5, 2026
Charleston Weather Discussion
The latest forecast and discussion for the Charleston, SC metro area
Charleston Area NWS Forecast
Forecast for Charleston updated at 5:37 PM on September 4, 2026
- Tonight Mostly clear. Lows in the upper 70s. Southwest winds 5 to 10 mph.
- Saturday Sunny. Highs in the mid 90s, except around 90 near the coast. Heat index values up to 110. West winds around 5 mph, increasing to southwest 10 to 15 mph in the afternoon.
- Saturday Night Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the upper 70s. Heat index values up to 106 early in the evening. Southwest winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent.
- Sunday Mostly sunny. A slight chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Locally heavy rainfall possible in the afternoon. Highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 70 percent. Heat index values up to 107.
- Sunday Night Showers with thunderstorms likely in the evening, then showers with a chance of thunderstorms after midnight. Lows in the mid 70s. Southeast winds 5 to 10 mph, becoming northeast with gusts up to 20 mph after midnight. Chance of rain 90 percent.
- Labor Day Showers and thunderstorms likely. Highs in the mid 80s. Chance of rain 70 percent.
- Monday Night Mostly cloudy with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 50 percent.
- Tuesday Mostly sunny with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 50 percent.
- Tuesday Night Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent.
- Wednesday Mostly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 20 percent.
- Wednesday Night Mostly clear. Lows in the lower 70s.
- Thursday Sunny. Highs in the upper 80s.
- Thursday Night Mostly clear. Lows in the mid 70s.
- Friday Sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105 in the afternoon.