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Last Map Update: Wed, Jul 9, 2025 at 6:36:44 am MST

Watches, Warnings & Advisories

National Weather Service NWS Flagstaff, AZ

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National Weather Service Albuquerque, NM

National Weather Service NWS Tucson Arizona

Extreme Heat Warning

Red Flag Warning

Heat Advisory

Air Quality Alert

Hazardous Weather Outlook

Extreme Heat Warning

Record Highs Possible

Weather Outlook

Heat Safety

Temperatures will peak around 10°F above daily normals today across the lower deserts of AZ and Southeast CA, resulting in widespread Major HeatRisk. Well above normal temperatures (though a few degrees cooler) will persist on Thursday, continuing the Major HeatRisk for some areas, though less widespread than today. As such, Extreme Heat Warnings remain in effect for portions of the region through Thursday.

Record hot temperatures will be possible on Wednesday and Thursday, particularly at Phoenix and Imperial. Highs will trend down closer to 110 degrees across the lower deserts by this weekend.

Strong high pressure has built over the region, resulting in areas of Major HeatRisk. Today will be the hottest day, with temperatures will peaking around 10°F above daily normals and forecast highs near record values for the date in some places. Dry conditions will prevail through early next week with only slight (10-20%) chances for afternoon storms over the AZ high terrain and better chances confined to Southeast AZ.

With temperatures peaking well above normal, near daily records during the middle of this work week, it is crucial to practice heat safety precautions such as those shown here. Don't underestimate the heat - it is the deadliest weather phenomenon in the US!