PHOENIX (AZFamily) — It’s a First Alert Weather Day with an Extreme Heat Warning in effect for the Valley starting at 10 a.m. today. Look for a Valley high of 113 degrees, which is six degrees above normal for this time of year and five degrees shy of the daily record.
Record-breaking temperatures are possible tomorrow as an already strong ridge of high pressure strengthens over our region. Wednesday and Thursday are also First Alert Weather Days, with the Extreme Heat Warning in effect until Thursday at 8 p.m. High temperatures will top out near 117 degrees on Wednesday, which will tie for our hottest day so far this summer. That would also break the previous daily record of 116 degrees, set in 2024.
Temperatures in the Valley are expected to top out near 113 degrees on Thursday and near 110 to 111 degrees Friday through the weekend.
While strong high pressure shifts around our region, it never really gets to a favorable spot to advect monsoon moisture into Arizona. Thunderstorm chances today are near 20% for most of the high country and look even more slim after tomorrow. The White Mountains will continue to see daily storm chances.
Monsoon moisture may return more in full late next week, but that’s a ways out. We’ll keep you posted on any changes as we get closer.
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