Extreme heat is settling in over Ohio, making it feel over 100 degrees. Here's the latest forecast and how you can stay cool.

The forecast high in Little Rock for July 23-24 was 101 degrees and heat index values nearing 110. The heat index measures how hot it actually feels when factoring for humidity. It's summer and it's supposed to be hot.

The National Weather Service has issued extreme heat warnings and heat advisories for regions of Louisiana. What to know about the heat index.

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 issued a heat advisory for Hartford, Tolland and Windham counties as well as much of Southern New England starting 11 a.m. Thursday.

Heat index values could rise to 110-112 degrees, according to the National Weather Service. Higher rain chances later in the week could offer relief.

The National Weather Service issued Extreme Heat Watches and Flood Advisories throughout Illinois. Here's the forecast.