Arizona weather forecast: Higher storm chances later this week
PHOENIX - Temperatures are staying hot throughout the week ahead.
Early This Week:
Extreme Heat Warnings remain in effect through Tuesday evening in the Valley of the Sun, as high temperatures hover around 110 degrees.
Overnight lows will drop to 89 degrees by Tuesday morning, and climb to 111 on Tuesday afternoon. Skies will stay mostly sunny and hazy.
Isolated showers and thunderstorms will travel southeast along the Mogollon Rim and White Mountains on Monday evening, ending overnight.
Another round of isolated showers and storms is expected Tuesday afternoon in the high country.
Meanwhile, southeastern Arizona will see a chance for strong and severe storms, and blowing dust, which could impact the I-10 corridor near Tucson.
Later This Week:
Daily storms will traverse the mountain terrain all week, but the chance of rain will increase in the Valley Thursday through Saturday.
Temperatures will briefly fall to near-normal highs, around 105 degrees on those days.
Morning Weather Forecast - 8/11/25
We're expecting a hot start to the week, but we are also expecting lower temperatures afterwards.
You can always check the latest weather conditions by visiting the FOX 10 Phoenix weather page, or download the Free FOX 10 Weather app, which is available on Apple iOS and Android.
Scroll down this page for satellite and radar, day planner, records, current temperatures, 10-day forecast, forecast highs, and recent rainfall totals, plus live video feeds.
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