Arizona weather forecast: More record-high temps on the way
Evening Weather Forecast - 8/7/25
Thursday once again brought record-breaking heat to the Valley, but cooler temperatures, so to speak, are on their way.
PHOENIX - Record high temperatures hit the Valley Thursday afternoon, with a high of 117 degrees. There was also a record warm morning low of 93 degrees Thursday morning.
Tonight:
Temperatures will struggle to cool again Thursday night, with lows around 91 degrees. Skies will stay dry in the Valley Thursday evening and night, but the high country is seeing more rain activity. Isolated showers and thunderstorms are making their way northeastward through the high country during the evening and will come to an end overnight.
There is a chance for a couple of isolated showers in far southern AZ through the night. If that moisture makes its way north to the Valley overnight, we may be able to see an isolated shower Friday morning in the Valley.
Tomorrow:
Temperatures will start to cool a bit on Friday, with high temperatures staying under records. We will see a high of around 112 degrees in the Valley. The high country will cool a few degrees as well. Showers and storms will pop up in the high terrain again Friday afternoon and evening.
This Weekend:
Temperatures will thankfully cool even more over the weekend, with highs around 110. The Valley will stay mainly dry through the weekend, but the high country will see more daily storms.
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The following heat safety information was provided by the Scottsdale Fire Department:
What are Heat Emergencies?
Heat Cramps: Profuse sweating, fatigue, extreme thirst, muscle cramps
Heat Exhaustion: Headache, dizziness, weakness, nausea/vomit, Cool/moist skin
Heat Stroke: Elevated temp. +103degrees, confusion/irrational behavior, dry/hot skin, rapid shallow breathing, rapid weak pulse (shock), seizures, unconscious
What to do
- Get person into shade or cool location
- Cool person with cool, wet cloths (neck, groin, armpits, head) and fan body
- Sip cool water if person is alert
- For muscle cramps, massage muscles gently, but firmly until relaxed
- *If symptoms worsen, call 911
What not to do
- Do not give anything by mouth if person is vomiting, unable to swallow or unconscious
- Do not underestimate the seriousness of a heat emergency
- Prevention/Preparation for hike/exercise in heat
Know your limitations
- Hydrate (begins day prior to hike/exercise, hour before hike, during and after)
- Wear proper clothing, lightweight and light color, protect head, proper shoes
- Always carry a cell phone and best to hike with company
- Always tell someone where you are hiking and when to plan to return
Preventing heat exhaustion/heat stroke
The Arizona Department of Health Services stated the following precautions can be taken to prevent heat exhaustion or heat stroke:
- Stay in air-conditioned buildings
- Find a cooling center/hydration station
- Limit outdoor activity during the hottest part of the day (mid-day)
- Check on at-risk friends, family, and neighbors at least twice a day
- Drink water before, during, and after working or exercising outside
- Check the UV Index
- Check the heat risk map
Road Conditions
- Call 511 anywhere in Arizona or 1-888-411-ROAD (7623)
- az511.com