Heat — Riverside County Mountains, California

2025-08-07 · Riverside County Mountains, California

Event narrative

Daily record high temperature of 96 at Idyllwild.

Wider weather episode

A strong upper level high pressure over the southwest US produced well above average temperatures for several days during the first half of August. Most inland areas saw dangerous heat levels with the low elevations of the deserts being particularly affected. Temperatures peaked on August 7th, a day that produced several record highs across the area.

Source: NOAA Storm Events Database, event_id 1292640. Narrative written by the NWS forecast office that issued the report.