Currently

96°

Feels Like 111°

Mostly Cloudy

Wind Not Available
Pressure 30.03 in.
Dewpoint 77°F
Humidity 54%

last updated at 1:56 PM on July 17, 2026

Weather Alerts

Issued by the National Weather Service, last updated at 3:10 PM on July 17, 2026

Heat Advisoryfor Inland Berkeley; Charleston; Tidal Berkeley until 7:00 PM on July 17, 2026

Charleston Weather Discussion

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

Friday & the weekend: Midsummer heat continues

Jared Smith / July 16, 2026 at 9:37 PM

Heat and humidity continues for Friday and the weekend with high pressure aloft the main weather driver. Atlantic high pressure will continue to drive high dewpoints into the area, and that not only will drive heat indices well into the 100s, but it will keep us quite toasty at night, too. Expect lows in the upper 70s each day, perhaps not dropping below 80° closer to the coast and downtown.

Charleston Area NWS Forecast

Forecast for Charleston updated at 2:22 PM on July 17, 2026

This Afternoon Sunny. Highs in the mid 90s. Heat index values up to 112. South winds 5 to 10 mph with gusts up to 20 mph.
Tonight Mostly clear. Lows in the upper 70s. Heat index values up to 105 early in the evening. South winds 5 to 10 mph.
Saturday Sunny. Highs in the lower 90s. Heat index values up to 109. South winds 10 to 15 mph with gusts up to 25 mph.
Saturday Night Mostly clear. Lows around 80. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Sunday Sunny. Highs in the lower 90s. Southwest winds 15 to 20 mph. Heat index values up to 109.
Sunday Night Partly cloudy with a chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 50 percent.
Monday Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 105.
Monday Night Partly cloudy with a chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 50 percent.
Tuesday Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 50 percent. Heat index values up to 110.
Tuesday Night Partly cloudy with a slight chance of showers and thunderstorms. Lows around 80. Chance of rain 20 percent.
Wednesday Mostly sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 110.
Wednesday Night Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 70s. Chance of rain 50 percent. Heat index values up to 105 early in the evening.
Thursday Showers and thunderstorms likely. Highs around 90. Chance of rain 70 percent. Heat index values up to 105.

Built and maintained by Jared Smith in West Ashley for the Charleston, SC metro area since 2008

Support Charleston Weather

Social Media

Always have multiple ways to receive weather warnings, including one that doesn't require the Internet (like a weather radio).
Always refer to official statements from the National Weather Service and local emergency management for life-and-death decision-making.
This site is provided as a best effort, but reliability cannot be guaranteed. Use at your own risk.