Arizona weather forecast: Historic heat expected this week in Phoenix
Evening Weather Forecast - 3/16/26
Get ready for a hot week this week, as temperatures could reach the triple digits. FOX 10's Erica Horvatin has more.
PHOENIX - Monday was a sunny and warm day for much of Arizona.
The Phoenix area saw a high temperature of 93 degrees. There were some breezy winds in northern and western Arizona, especially along the Colorado River near Bullhead City. A Lake Wind Advisory will remain in effect for the Colorado River Valley from Lake Mead to Lake Havasu until 8 PM tonight for wind gusts over 45 mph, and the winds will lighten afterward.
Tonight:
Tonight will be a clear night, with a low around 65 degrees in the Valley.
Tomorrow:
Tuesday will be sunny with a high around 97 degrees in Phoenix. The high country will start to warm up as well, with 70s and 80s along the Mogollon Rim and Colorado Plateau. Flagstaff and Prescott will reach record-tying warm temperatures.
Looking Ahead:
The rest of the state will start breaking record warm highs and lows from Wednesday through Sunday. The peak of the heat wave will be Thursday through Saturday. The Valley will hit high temperatures around 104 to 106 during that time.
Hikers hit Phoenix trails ahead of historic heatwave
This week, the Valley could see its earliest 100-degree day on record, and with a lot of people in town for spring break, now is an important time to remind everyone to take precautions when out on hiking trails. FOX 10's Irene Snyder reports.
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
The Source: Information for this story was gathered from the FOX 10 Weather Experts.