Orlando residents can expect heat with low 100s indices, humidity, and moderate rip current risk. Rain chances rise later in the week, possibly affecting outdoor activities and travel.

The National Weather Service issued a Heat Advisory for St. Louis until 9 PM CDT Thursday, warning of heat index values up to 103 degrees and advising precautions against heat-related illnesses.

Philadelphia faces extreme heat with NWS issuing warnings for high temperatures and health risks, advising residents to stay cool, hydrated, and watch out for others.

The National Weather Service in Charlotte has issued a Heat Advisory, warning of heat indices up to 108 degrees and advising caution due to health risks.

The National Weather Service in Cleveland has extended the Heat Advisory due to high temperatures, with a cold front bringing potential thunderstorms and slight cooling.

The National Weather Service issued an Extreme Heat Warning for Baltimore MD/Washington DC; it's active from 11 AM to 9 PM today with a watch through Wednesday evening.

An Extreme Heat Warning is in effect in New York City, with temperatures reaching over 100 degrees, and advisories to stay hydrated and indoors. Cooling centers are open, and later in the week, showers may provide some relief.

The NWS issued a heat advisory for Columbus, Cincinnati, and Wilmington until Wednesday evening, warning of high temperatures and heat indices up to 105 degrees. Residents are advised to stay calm and hydrated.

Baltimore is experiencing a severe heatwave with temperatures forecasted by the NWS to reach up to 101 degrees. Heat advisories are in effect, and there is a slight chance of thunderstorms but little relief from the heat.

Tampa's forecast predicts a hot week with sunny skies, scattered thunderstorms, and high humidity, with temperatures reaching mid-90s and chances of rain most afternoons and evenings.

The NWS predicts high humidity and heat for Jacksonville, with a heat index potentially reaching 100 degrees and chances of thunderstorms increasing as the week progresses.

Central Indiana is under a Heat Advisory with heat index values expected to hit 100-105 degrees. Residents are advised to stay cool and hydrated, and watch for thunderstorms with possible severe weather.

The National Weather Service in Memphis has issued a Heat Advisory for the region, warning of high temperatures and humidity, with heat index values up to 107 degrees, and advising residents to take precautions.