A Heat Advisory is in effect today for the Victoria Crossroads, the Coastal Bend and barrier islands, and for portions of the Brush Country from noon until 6 p.m.
The temperature is expected to reach 99 degrees Monday afternoon, with heat index values expected to be between 110 to 114 degrees.
Victoria County has had a heat advisory in effect since Aug. 7.
Dangerous heat will likely occur again over South Texas during the afternoon hours Tuesday, according to the National Weather Service.
Temperatures that hot are related to increased risk of heat-related illnesses including heat exhaustion and heat stroke.
An Excessive Heat Warning is in effect today for Jim Wells and western Kleberg counties from Noon until 6 p.m., with heat index values between 115 to 119 degrees.