Extreme Heat Watch

Locations Affected

Savannah, GA ∙ Charleston, SC ∙ North Charleston, SC ∙ Mount Pleasant, SC ∙ Hilton Head Island, SC ∙ Johns Island, SC ∙ Shellman Bluff, GA ∙ Tybee Island, GA ∙ Parris Island, SC ∙ James Island, SC

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Charleston SC 908 AM EDT Thu Aug 13 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... ...EXTREME HEAT WATCH REMAINS IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY EVENING... * WHAT...For the Extreme Heat Warning, dangerously hot conditions with heat index values 112 to 118 degrees. For the Extreme Heat Watch, dangerously hot conditions with heat index values 115 to 120 degrees possible. * WHERE...Portions of southeast Georgia and southeast South Carolina. * WHEN...For the Extreme Heat Warning, until 8 PM EDT this evening. For the Extreme Heat Watch, from Friday morning through Friday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Isolated showers and thunderstorms each afternoon may provide relief in some areas. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sunshine, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

---