The mountain community of Idyllwild in Riverside County reported a record-high temperature, according to the National Weather Service.
It was 94 in Idyllwild Tuesday, tying a record set in 1969.
There is a slight chance of showers and thunderstorms in the forecast for the valleys and Inland Empire with highs in the upper 90s Wednesday.
It will be in the mid-90s and breezy, with a 50% chance of showers in the afternoon, in the mountains in Riverside County Wednesday.