Arizona weather forecast: Hot, humid weekend ahead with rising rain chances
Monsoon moisture brings rain to high country while Phoenix hits 110
Phoenix reached 110 degrees as monsoonal moisture brought rain, wet roads, and cooler temperatures to high country areas like Flagstaff and Sedona. FOX 10's Ashley Loaeza has more on the rain chances Sunday evening.
PHOENIX - Sunday was an active start to the weekend along with an early start to the monsoon season!
This Weekend:
Sunday's showers and storms fired up across the high country and southern Arizona. Activity will decrease in the evening with more storms possible to start the workweek. There will be a chance for storms along northern and eastern Maricopa County, along with gusty winds, blowing dust and dry lightning from storms to the south.
Looking Ahead:
Rain chances remain for the start of the workweek along with hot temperatures.
Temperatures will remain above average, nearing 110 degrees, with readings dropping down later in the week. The "cool down" will allow for readings to be closer to average.
Storm chances in the high country will continue for next week with gusty winds in the Valley by Tuesday night.
Look Back on Friday & Saturday:
Saturday was a hot and humid start to the weekend with hotter temperatures on the way.
Phoenix hit a high of 110 degrees, which is four degrees above normal. This also marks the first 110 degree reading of the year! The average first 110 degree day happens on June 11.
Temperatures will continue to warm through next week, leading to widespread moderate heat risk and some areas under a major heat risk. Overnight lows will also be warm in the 80s. The Valley will remain dry with the chance of gusty winds and possible thunderstorms along northern and eastern Maricopa County on Saturday evening.
Phoenix hits first 110-degree day of 2026, extreme heat to stick around
Phoenix recorded its first 110-degree temperature of 2026 on Saturday as an unseasonably hot ridge of high pressure settles over Arizona. FOX 10's Ashley Loaeza has more on the persistent extreme heat expected throughout the upcoming week.
Friday was a hot and humid day, hitting a high of 106 degrees in Phoenix on Friday, which is just two degrees above normal.
Clouds increased across the Valley with the arrival of moisture moving in from the south. Only light precipitation was observed in the Valley with a better chance of rain in the state this weekend.
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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)
The Source: Information for this article was gathered by the FOX 10 Weather Experts, and from the National Weather Service.