Jacksonville, North, Northeast Florida: Dangerous heat today, with heat index of 108 to 115. Extreme heat warning and heat advisories issued.

The National Weather Service has issued a heat advisory in effect from 11 a.m. to 8 p.m. Tuesday and Wednesday. Heat index values up to 103 degrees are expected. The weather service warns hot ...

"Cooler" weather is on the way, with highs starting to taper off Wednesday into the weekend, but temperatures will still be ...

Triple-digit temperatures in the Southwest, Midwest and Tennessee Valley could mean flight delays and cancellations through ...

The National Weather Service in San Juan, Puerto Rico, has issued heat warnings and advisories for Puerto Rico and the U.S.

A heat advisory has been issued for the Lower Hudson Valley on Monday, July 28, as heat index levels are predicted to reach ...

The National Weather Service has issued a heat advisory for Rhode Island and other parts of Southern New England.

The National Weather Service/Jacksonville has issued a rare Extreme Heat Warning for inland portions of St. Johns County ...

A heat advisory is back for the Metroplex, as well as counties to the North and East. The alert, issued by the National ...

Rain chances will increase slightly in coming days to ease temperatures a bit. But it's still going to be very hot.

Temperatures could feel like close to 110 degrees in Iowa today with much of the state under an extreme heat warning. Severe ...