Summer is right around the corner but for some in the South, it feels like it has already arrived as temperatures soar.

Dangerous heat is building in across south Florida and south Texas today through the end of the week. The TemperatureRadar shows highs surging into the 90s across these regions, with plenty of moisture also in the mix. This combination of heat and humidity can be deadly, so take steps to stay cool and out of the heat.

Across the Sunshine State, you can see persistent southwest winds on our WindRadar, which is setting the stage for hot weather, even by Florida standards. High will reach the 90s in cities like Miami, Fort Lauderdale, and West Palm Beach, Fla., this week. Some of the most dangerous heat and humidity will build into southern Florida today and tomorrow.

The heat will also help spark storms across the Florida peninsula, with strong storms also building across the southern and central Plains as well as the Carolinas.

Hazardous heat will also build into south Texas as a warm front moves in from the Gulf of Mexico. Highs will be in the 90s across south Texas through the end of the week.

Cities such as Brownsville, McAllen, and Corpus Christi, Texas will surge into the mid-90s through the end of the week. Moisture moving in from the Gulf will cause humidity levels to surge, making this heat dangerous.