We got within a few degrees of record highs on Tuesday and we'll come close again Wednesday as we head toward 100. Much of the country is under heat advisories or extreme heat warnings, so widespread dangerous heat will continue impacting over 150 million people nationwide.

Tuesday's temperatures could soar to near 100 degrees in Houston as a slightly less humid air mass moves in and eases heat index values.

Prepare for another sunny and hot day in the upper 90s. Highs could reach as close to 100 but temperatures could cool down with the chance for showers beginning tomorrow and then increasing.

Through Tuesday, expect mostly sunny and hot weather. Highs will be in the mid to upper 90s, with heat index values feeling like 100-105 degrees. The official advice is to stay hydrated, wear light clothing, and seek shade and AC during the hottest parts of the day.