Temperatures soared to 110 degrees across the Valley on Sunday under mostly sunny skies, and forecasters expect the extreme heat to continue through the week.
Hot and Dry Start to the Week
Thanks to very dry air in place, temperatures will briefly dip into the low 80s by Monday morning. However, Monday afternoon will bring even hotter conditions, with highs expected to reach 112 degrees under clear skies.
Daytime temperatures will remain dangerously hot throughout the work week, with highs near or above 110 degrees every day. Looking ahead to next weekend, even higher temperatures are forecast, pushing well into the mid-110s.
Warm Nights Ahead
Overnight lows will also remain elevated, particularly beginning Tuesday, when increasing humidity will prevent much nighttime cooling. Lows will only drop into the upper 80s.
Rain and Storm Outlook
Monsoon moisture will return to eastern Arizona, bringing daily showers and thunderstorms to mountain areas from Monday through Friday.
In the Valley, rain chances remain slim, but isolated showers or storms are possible on Wednesday, Thursday, and Friday. Of these, Thursday carries the best potential for activity.
Staying Safe in the Heat
With extreme temperatures persisting, health officials are urging residents to take precautions to avoid heat-related illness. The Arizona Department of Health Services advises the following steps:
- Stay indoors in air-conditioned spaces
- Use cooling centers and hydration stations when needed
- Limit outdoor activity during the hottest parts of the day (especially midday)
- Stay hydrated—drink water before, during, and after time spent outside
- Regularly check on vulnerable individuals, including the elderly and those with chronic conditions
- Monitor the UV Index and local heat risk maps
Officials emphasize that early recognition of heat exhaustion and heat stroke symptoms—such as dizziness, confusion, nausea, and dry skin—is critical. Immediate action can save lives during periods of prolonged heat.
Stay informed by checking local forecasts daily and plan outdoor activities wisely as Arizona enters another week of intense summer heat.
