Currently

81°

Feels Like 84°

Partly Cloudy

Wind SSW at 7 mph
Pressure 30.10 in.
Dewpoint 70°F
Humidity 70%

last updated at 9:40 AM on May 21, 2026

Charleston Weather Discussion

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

Thursday: One more warm and sunny day before unsettled conditions return

Jared Smith / May 20, 2026 at 11:30 PM

After another day in the upper 80s on Wednesday — just missing 90° by a couple degrees at the airport — we should turn even a little warmer for Thursday with plenty of sunshine to be had. It’ll be a bit of a balmy day in general as lows in the upper 60s warm to the low 90s in the afternoon. Mid-60s dewpoints will keep the heat index in check, though it may feel a tick or two warmer than the air temperature.

Charleston Area NWS Forecast

Forecast for Charleston updated at 5:37 AM on May 21, 2026

Today Areas of fog this morning. Sunny. Highs in the upper 80s, except in the lower 80s near the coast. Southwest winds around 5 mph, increasing to south 10 to 15 mph this afternoon.
Tonight Partly cloudy in the evening, then becoming mostly cloudy. Lows around 70. South winds 10 to 15 mph, diminishing to around 5 mph after midnight.
Friday Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 80s. South winds 5 to 10 mph. Chance of rain 20 percent.
Friday Night Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 70s. South winds 5 to 10 mph. Chance of rain 40 percent.
Saturday Mostly cloudy in the morning, then becoming partly sunny. A chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the upper 80s. South winds 5 to 10 mph. Chance of rain 50 percent.
Saturday Night Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the mid 70s. Chance of rain 50 percent.
Sunday Partly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 50 percent.
Sunday Night Mostly cloudy. Lows in the mid 70s.
Memorial Day Mostly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 20 percent.
Monday Night Partly cloudy. Lows in the mid 70s.
Tuesday Mostly sunny with a slight chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 20 percent.
Tuesday Night Partly cloudy. Lows in the lower 70s.
Wednesday Partly sunny with a chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 50 percent.

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