Some parts of the Inland Empire could reach a little over 100 degrees, while much of Los Angeles and Orange counties will see temperatures in the 90s.

The heat pushed well into the 90s in many areas Wednesdays, which forecasters said would be the peak of the small heat wave.

“There is a high risk for heat illness for sensitive populations including the very young, the very old, those without air conditioning, and those active outdoors,” the National Weather Service advis...