BEAUFORT, SC — Aug. 15, 2026 — Beaufort County is currently under an Extreme Heat Warning, issued by the National Weather Service Charleston forecast office. The warning is in effect from 11 a.m. to 8 p.m. EDT on Saturday, August 15, 2026, with heat index values projected to reach as high as 113 degrees Fahrenheit. Residents are urged to take precautions against the dangerous conditions, which are expected to persist throughout the weekend and into the early part of next week.
The forecast for Beaufort on Saturday, August 15, indicates a high temperature near 96 degrees. However, the heat index, which accounts for both temperature and humidity, will make conditions feel significantly hotter. The National Weather Service emphasizes that these extreme heat index values pose a substantial risk to public health, particularly for vulnerable populations such as the elderly, young children, and individuals with pre-existing health conditions.
Beaufort County government issued a public advisory on Friday, August 14, 2026, to alert residents about the ongoing excessive heat. This advisory underscored the importance of staying hydrated, seeking air-conditioned environments, and limiting strenuous outdoor activities during the hottest parts of the day. Community centers and public libraries often serve as cooling centers during such events, and residents are encouraged to check with local authorities for available resources.
The heat is not expected to abate significantly on Sunday, August 16. The point forecast for Sunday calls for a high near 97 degrees, with heat index values potentially climbing even higher, up to 115 degrees. There is a slight chance of showers and thunderstorms after 2 p.m. on Sunday, with a 20 percent probability, which might offer some temporary relief but is unlikely to break the overall heatwave.
Looking ahead to the workweek, the forecast indicates a continuation of the sweltering conditions. Monday, August 17, is expected to see a high near 99 degrees, while Tuesday, August 18, could reach a high near 100 degrees. Overnight lows across the weekend and into the workweek are projected to remain uncomfortably high, hovering in the 79 to 81 degree range. These elevated nighttime temperatures prevent the body from cooling down effectively, increasing the risk of heat-related illnesses.
The National Weather Service advises against leaving children or pets unattended in vehicles, as interior temperatures can rise rapidly to dangerous levels even on moderately warm days. Individuals working outdoors or participating in outdoor activities should take frequent breaks in shaded or air-conditioned areas, drink plenty of fluids, and wear light-colored, loose-fitting clothing. Symptoms of heat exhaustion or heatstroke, such as dizziness, nausea, confusion, and a rapid pulse, require immediate medical attention.
Local officials are monitoring the situation closely and are prepared to respond to any heat-related emergencies. The Beaufort Marine Corps Air Station observation site, located at coordinates 32.49 north and 80.7 west with an elevation of 36 feet, reported a temperature of 76 degrees with light rain and 88 percent humidity at 10:56 p.m. EDT on August 14. While this observation was taken before the peak heat, it highlights the high humidity levels contributing to the elevated heat index values.
Residents are encouraged to check on elderly neighbors and those who may be more susceptible to heat-related health issues. Pet owners should ensure their animals have access to fresh water and shade, and avoid walking pets on hot pavement, which can burn their paws. Staying informed through official weather alerts and local government advisories is crucial during this period of extreme heat.
The prolonged period of high temperatures and humidity underscores the importance of community preparedness and individual responsibility in mitigating the risks associated with extreme heat. Public safety officials remind everyone to prioritize their health and safety, and to seek assistance if they or someone they know is experiencing symptoms of heat-related illness.
