Arizona weather forecast: Significant cool down hitting the Phoenix area ahead of triple-digit heat
PHOENIX - Monday was a cloudy and cool day across Arizona. Temperatures dropped around 10 to 20 degrees from Sunday’s temperatures. Phoenix only reached a high of 79 degrees.
Moisture increased in southern Arizona ahead of an incoming low pressure system. Rain started in Pinal County and southern Arizona during the afternoon.
Tonight & Tomorrow:
There will be rain showers in the Valley and eastern Arizona late this evening and overnight. The Valley could even see isolated showers during the Tuesday morning commute.
While showers will dry out in the Valley by around 9 AM, scattered rain will continue in northeast Arizona through Tuesday evening.
Tuesday will be a partly cloudy day in the Valley, with a high temperature of around 79 degrees. Temperatures in the high country will be cold, with a high of only 48 degrees in Flagstaff, 56 degrees in Show Low and 61 in Sedona.
Looking Ahead:
Skies will clear and temperatures will warm Wednesday through the end of the week. Triple digit temperatures will arrive in the Valley on Saturday.
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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.






