 Your Monday afternoon will feature a very hot day with temperatures near 100 degrees, but heat index values closer to 110, which is why the National Weather Service has an excessive heat warning in effect from 11 a.m. to 8 p.m., so remember to stay cool. We're also tracking the chance of a few showers and storms tomorrow, some of which could be strong to severe, so remember to stay weather aware. I'm 7 News Meteorologist Mark Pena in the First Alert Weather Center.