Arizona Desert Southwest Heat and Storm Threat Continues

High temperatures in the Coachella Valley remain near seasonal levels, but lingering humidity and monsoonal moisture keep the Desert Southwest humid and uncomfortable. A First Alert Weather Alert is in effect through the evening, warning of isolated thunderstorm development over surrounding mountains, with possible gusty outflow winds, dust, and lightning.

While the extreme heat warning has expired, heat index values stay high because of the moisture. Forecasts call for scattered showers and thunderstorms through the week, with a greater risk of flooding and stronger rainfall toward the east. Residents are advised to stay storm‑ready and monitor any sudden changes in conditions.