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Last Map Update: Wed, Sep 9, 2026 at 6:30:13 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

Heat Advisory

Coastal Flood Advisory

Extreme Heat Warning

Hot Temperatures Continue

Thunderstorm Outlook

Heat Safety Tips

Localized Major HeatRisk will be present over the Arizona lower deserts through Thursday and through Friday for portions of southeast California. High temperatures will reach 4-7 degrees above normal, while lows will be 5-10 degrees above normal. Extreme Heat Warnings are in effect for portions of the lower deserts through Friday.

Temperatures across the region will be well above normal through the end of this week, resulting in widespread Moderate to Major HeatRisk. Temperatures start to gradually "cool" this weekend.

Thunderstorm chances will remain low (<10%) across the bulk of the area through Thursday with storms focused across the higher terrain areas of eastern and southeastern AZ. Moisture levels will increase Friday into early Saturday, allowing for increased rain chances and coverage spreading into the south-central AZ lower deserts.

Temperatures will be above normal through the week, and peak around 5-10° above normal during the middle of the workweek. These temperatures will result in widespread Moderate to Major HeatRisk. An Extreme Heat Warning is also in effect for portions of the lower deserts from Tuesday-Friday. Make sure to practice smart heat safety this week.