A heat advisory goes into effect Thursday for parts of Connecticut where heat index values will soar past 100 degrees on Friday.

Good morning Central Alabama. A hot one is store for today with increases in rain chances through the end of the week. Another round of warmer than normal temperatures is likely next week, with even less rain coverage. #alwx pic.twitter.com/aZIg9k4RfG

The National Weather Service warns of heat indices up to 104 degrees with potential thunderstorms developing in the late afternoon that could bring damaging winds.

Most of Ohio is under a heat advisory with temperatures that will feel 100-plus. Here's the difference between a heat advisory, heat watch and heat warning.

The National Weather Service office in Mobile, Alabama, issued a heat advisory in Escambia, Santa Rosa and Okaloosa counties between 10 a.m. and 7 p.m. Monday. Heat index values are forecast to reach as high as 109℉ in portions of south central and southwest Alabama, northwest Florida and southeast Mississippi.

NWS expects the heat value to go up to 110 degrees. The organization warns that hot temperatures, coupled with humidity, may cause heat illness. Precautionary measures provided by NWS include drinking plenty of water, staying out of the sun and staying in air-conditioned rooms.

The National Weather Service has extended its heat advisory for the Ozarks through Tuesday evening due to dangerously hot and humid conditions, with daily heat index values ranging from 100 to 107

Forget about any worries of tropical weather today. Instead pay attention to the heat: temperatures in Jacksonville could feel as high as 113 degrees.

Thursday is a NEXT Weather Alert Day in Southeast Michigan because of dangerous heat that will affect the region for one day.