San Antonio's weather will be sunny with highs in the upper 90s and occasional chances for showers and thunderstorms.

The heat index ― a measure of how hot it feels to the human body when humidity and air temperature combine ― is forecast to ...

Dangerous fire conditions, soaring temperatures and smoky skies across Colorado prompted severe weather alerts for parts of ...

Heat index values up to 98 degrees are forecast for this weekend in southeast Michigan. See temperatures for Aug. 9-10.

The weekend in North Texas ends with a hot, dry and sunny Sunday as cooling rain showers are forecasted to make an appearance ...

Every summer, TV meteorologists across the United States increasingly trumpet the “heat index” as an important headline ...

Sweltering heat, a hint of rain and a stormy weekend could all be in the cards for the Kansas City area this week, according ...

Houston faces extreme heat with a heat index up to 111 degrees, possible thunderstorms, and persistent high overnight ...

Some rain gave families a break from sweltering heat on one of the last weekends before school starts, but hot temperatures will make a comeback.

Heat index values in Denton County are set to climb to triple digits again this week and top out at 110 degrees come Thursday ...

The National Weather Service is warning of dangerous heat index values near the threshold for a heat advisory, with temperatures reaching the upper 90s away from the coast, and urging vulnerable ...

South Florida has been under a heat advisory for a weeklong stretch, according to the National Weather Service in Miami. The heat index — humidity mixed with the air temperature — has been 105 or ...