A Heat Advisory and Extreme Heat Watch have been issued in parts of Florida and Georgia due to high heat index values up to 115 degrees, with warnings to take precautions against heat-related illnesses.

San Antonio is set to experience intense heat this week, with potential triple-digit temperatures and a slight chance of showers and thunderstorms. Winds are light with potential gusts.

Nashville's NWS issues a Heat Advisory warning of extreme temperatures and high humidity until Wednesday evening.

New York faces diverse weather with storms and a heat advisory, with high temperatures and chances of rain and thunderstorms, as residents are advised to stay updated.

A Heat Advisory is issued by the National Weather Service for multiple areas including parts of Georgia, North Carolina, and South Carolina, with heat index values up to 108 degrees.

Washington D.C. area is under a Heat Advisory with heat index values up to 107 degrees; residents advised to take precautions due to the health risks from high temperatures and potential thunderstorms.

A heat advisory is in effect for Columbus and Cincinnati as the region prepares for high temperatures and humidity. Conditions are expected to improve by the end of the week.

Philadelphia's forecast includes a mix of weather, with imminent showers and thunderstorms, high humidity and temperatures varying from the mid-70s to high-90s. Conditions will fluctuate throughout the week.

Pittsburgh faces a summer of heatwaves, thunderstorms, and showers, with a marginal risk of severe storms and localized heavy rains predicted by the National Weather Service.

St. Louis is facing a severe heatwave, with the National Weather Service issuing an Extreme Heat Warning with heat index values up to 112 degrees. Residents are advised to take precautions against heat-related illnesses.

East central Florida is under a Heat Advisory with heat indices potentially reaching 114 degrees. Residents are advised to stay cool and hydrated amid record-breaking heat.

The National Weather Service in Indianapolis issued a Heat Advisory due to high temperatures with a potential heat index of 105. There's also a 60% chance of rain and storms, with a possibility of severe weather midweek.

Baltimore faces high temperatures with heat index over 100, along with a heat advisory and potential severe thunderstorms. Midweek heat will continue; temporary relief expected by Saturday.