Mount Pleasant, South Carolina Weather:
Active Weather Warnings
Thursday, August 13, 2026
Sunny with a Chance of Thunderstorms
Day 97°
Night 79°
Precipitation 55 %
Wind 8 mph
UV Index (0 - 11+) 10

Weather Alerts and Warnings for

Severe Future Likely

Extreme Heat Watch

Extreme Heat Watch issued August 12 at 6:45AM EDT until August 13 at 8:00PM EDT by NWS Charleston SC
Aug 13, 11:00 AM Aug 13, 8:00 PM
WHAT: For the Heat Advisory, heat index values up to 110 expected.
For the Extreme Heat Watch, dangerously hot conditions with heat
index values up to 115 possible.

WHERE: Portions of southeast Georgia and southeast South Carolina.

WHEN: For the Heat Advisory, from 11 AM this morning to 8 PM EDT
this evening. For the Extreme Heat Watch, from Thursday morning
through Thursday evening.

IMPACTS: Heat related illnesses increase significantly during
extreme heat and high humidity events. Hot temperatures and high
humidity may cause heat illnesses.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Updated: Aug 12, 10:15 AM Source: NWS Alert