 And it'll feel noticeably more humid out there as well. And by tomorrow afternoon, downright hot. We've got highs right around 100 degrees. And you factor in the higher humidity, and that'll feel closer to 110. That's why the National Weather Service has issued an excessive heat warning that goes into effect at 11 a.m., lasting until about 8 p.m. So remember those heat safety tips that include staying hydrated, taking plenty of breaks in the shade, and wearing light-colored, loose-fitting clothing.