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79°

Feels Like 82°

Mostly Clear

Wind East at 3 mph
Pressure 30.11 in.
Dewpoint 75°F
Humidity 89%

last updated at 10:55 PM on August 30, 2026

Charleston Weather Discussion

The latest forecast and discussion for the Charleston, SC metro area

The week ahead: Climatological fall begins with temperatures back to the 90s

Jared Smith / August 30, 2026 at 11:00 PM

A very warm climatological summer — perhaps a top-three warmest on record — comes to an end on Monday as we roll into September. It won’t feel like fall, though, as temperatures head back to the mid-90s as clouds and showers give way to sunnier skies.

Charleston Area NWS Forecast

Forecast for Charleston updated at 7:22 PM on August 30, 2026

Tonight Mostly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 70s. East winds 5 to 10 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 upper 80s. Northeast winds around 5 mph, becoming east in the afternoon. Chance of rain 50 percent.
Monday Night Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. East winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent.
Tuesday Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s, except in the upper 80s near the coast. Northeast winds around 5 mph, becoming southeast in the afternoon. Chance of rain 20 percent.
Tuesday Night Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 70s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of rain 20 percent.
Wednesday Mostly sunny. Highs around 90. Heat index values up to 105.
Wednesday Night Partly cloudy. Lows in the mid 70s.
Thursday Sunny. Highs in the lower 90s. Heat index values up to 105.
Thursday Night Mostly clear. Lows in the mid 70s.
Friday Sunny. Highs in the lower 90s. Heat index values up to 110 in the afternoon.
Friday Night Partly cloudy. Lows in the mid 70s.
Saturday Sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105.
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 50 percent.

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