New Orleans

New Orleans Heat Advisory Issued, NWS Warns of Heat Index Values Reaching 108 Degrees

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Published on August 16, 2025
New Orleans Heat Advisory Issued, NWS Warns of Heat Index Values Reaching 108 DegreesSource: Google Street View

The National Weather Service in New Orleans issued a heat advisory for today, cautioning residents about high heat index values that could reach up to 108 degrees. The advisory, which remains in effect from 10 AM to 7 PM CDT, covers a vast area including parts of southeast Louisiana and southern Mississippi. "Heat index values up to 108 expected," warns the National Weather Service advisory, indicating that the combination of hot temperatures and high humidity may lead to heat illnesses.

The forecast, as published on the National Weather Service website, indicates that showers and thunderstorms are likely, particularly between 3 PM and 5 PM with a 60 percent chance of precipitation. Tonight's weather might see a 30 percent chance of showers and thunderstorms, mainly before 8 PM. Residents can expect mostly clear skies with a low around 80 degrees. The humidity, standing at a stifling 85%, partners with the unrelenting sun to present an atmosphere that demands caution and reprieve.

For the coming days, the pattern of sunny mornings followed by potential showers and thunderstorms in the afternoons is expected to continue. High temperatures will hover close to 90 degrees with nighttime lows around 80. Looking at Sunday, there will be a 40 percent chance of showers and thunderstorms after 1 PM, and Monday will mirror this prediction with a similar 40 percent chance in the afternoon, according to the National Weather Service.

Health officials recommend drinking plenty of fluids, staying in air-conditioned rooms, avoiding sun exposure, and checking on relatives and neighbors, especially those who may be more vulnerable to heat-related illnesses. For those working outdoors, the Occupational Safety and Health Administration suggests taking frequent rest breaks in shaded or air-conditioned environments. "Anyone overcome by heat should be moved to a cool and shaded location," the National Weather Service advisory states. In cases of heatstroke, which is an emergency situation, they implore to "Call 9 1 1."

As the region braces for the simmering heat, local authorities urge the public to take the necessary precautions to ensure their health and safety. For more information on the weather updates and safety guidelines, visit the National Weather Service website.