Expires:202607182000;;159897 FPUS52 KCHS 180623 ZFPCHS Zone Forecast Product National Weather Service Charleston SC 222 AM EDT Sat Jul 18 2026 GAZ240-182000- Inland McIntosh- Including the city of Townsend 222 AM EDT Sat Jul 18 2026 ...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 8 PM EDT THIS EVENING... .REST OF TONIGHT...Mostly clear. Lows in the mid 70s. Light and variable winds. .SATURDAY...Sunny. Highs in the mid 90s. Heat index values up to 109. South winds 5 to 10 mph. .SATURDAY NIGHT...Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. Heat index values up to 106 early in the evening. South winds 5 to 10 mph. Chance of rain 20 percent. .SUNDAY...Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. South winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 106. .SUNDAY NIGHT...Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph. .MONDAY...Sunny with a chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 50 percent. .MONDAY NIGHT...Partly cloudy. Lows in the mid 70s. .TUESDAY...Mostly sunny with a chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 40 percent. Heat index values up to 105. .TUESDAY NIGHT...Mostly cloudy. Lows in the upper 70s. .WEDNESDAY...Mostly sunny with a chance of showers and thunderstorms. Highs in the mid 90s. Chance of rain 30 percent. Heat index values up to 110. .WEDNESDAY NIGHT...Partly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the upper 70s. Chance of rain 40 percent. Heat index values up to 105 early in the evening. .THURSDAY...Showers and thunderstorms likely. Highs in the mid 90s. Chance of rain 60 percent. Heat index values up to 110. .THURSDAY NIGHT...Mostly cloudy with a chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 50 percent. Heat index values up to 105 early in the evening. .FRIDAY...Showers and thunderstorms likely. Highs in the lower 90s. Chance of rain 60 percent. Heat index values up to 105. $$