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Last Map Update: Mon, Aug 18, 2025 at 8:28:50 pm 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

Extreme Heat Watch

Hazardous Weather Outlook

Extreme Heat Warning

Temperature Outlook

Storm Chances

Heat Safety

Temperatures will steadily warm this week with readings approaching record territory during the middle and end of the week. HeatRisk will rise into a major, and even locally extreme category. As a result, an Extreme Heat Warning has been issued Wednesday through Friday

High pressure will build over the region this week resulting in a steady warming trend. HeatRisk will rise into the major category, with localized areas of extreme HeatRisk across the lower deserts by midweek.

Storm chances return to the higher terrain east of Phoenix tomorrow, with daily 20-50% chances through the week. Moisture will start to increase during the latter half of the week resulting in storm chances returning to the south-central lower deserts. Moisture will further increase and push westward Friday into this weekend, which will result in storm chances expanding into southeastern California and southwestern Arizona.

Widespread Major HeatRisk, with areas of localized Extreme Heat Risk, are expected during the middle to end of the workweek as temperatures warm well above normal. With these extreme temperatures, remember to practice smart heat safety.