PHOENIX (AZFamily) — A First Alert Day is in effect due to extreme heat and thunderstorms in the Valley tonight.
Strong winds and blowing dust are moving into the Valley, limiting visibility. A dust storm warning is in effect for most of the Valley, including Phoenix.
Winds are expected to reach up to 40 mph.
The storms previously prompted a dust storm warning for Pinal and Maricopa counties, including I-10 near Casa Grande and near Eloy.
The extreme heat First Alert days will remain in place through Saturday, Aug. 29.
Temperatures peaked at 113 degrees this afternoon, just one degree shy of the 114-degree record set in 2011. We are monitoring the conditions closely and will update you if we tie or break that record.
Scattered showers and thunderstorms will persist across northern and southeastern Arizona through this evening. Depending on how the outflow boundaries from these storms interact, there is a 30% chance of a thunderstorm late tonight in the Valley. Even if the rain misses us, gusty winds and blowing dust are possible.
Monday morning may start with lingering clouds before clearing to mostly sunny skies and a high of 109. Extreme heat continues Tuesday through Sunday, with highs climbing back between 110 and 114 degrees alongside minimal rain chances.
Up in the high country, scattered showers and storms will continue through Monday. While storm activity will taper off starting Tuesday to bring mostly dry conditions through Friday, the White Mountains will maintain a chance of showers and storms through most of the workweek.
See a spelling or grammatical error in our story? Please click here to report it.
Do you have a photo or video of a breaking news story? Send it to us here with a brief description.
Copyright 2026 KTVK/KPHO. All rights reserved.