Arizona weather forecast: Saturday hits triple-digits as October heat wave rages on

PHOENIX - A hot weekend is in store, followed by a much-needed cool down!

Afternoon temperatures will blast into the middle to upper 90s with an official forecast of 99 degrees at Phoenix Sky Harbor International Airport. Yet again, the forecast is expected to set a new record for heat. The previous record was set at 98 degrees back in 2001.

High pressure has been dominating the region and creating hotter than normal weather. Finally, it will break down and slip southward on Sunday and into Monday.

As a result, Sunday will still be hot in the middle 90s, but Monday will drop to the upper 80s and low 90s. By Monday evening and overnight, a cold front will pass through the region. This front brings the opportunity for showers and breezy conditions, as well as much more comfortable temperatures. While it's too early to guarantee rain or snow, higher elevations north and east of Phoenix may see some moisture.

For now, Phoenix's rain chance remains low at around 10% for Monday night into Tuesday morning.

Temperatures drop into the middle 70s by Tuesday with morning lows falling to the middle 50s next Wednesday morning. The comfortable air lingers, which should create great conditions on Halloween with a forecast high of 79.

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

Leave prepared before heading north

After recent snowfall in the high country, the Arizona Department of Transportation is reminding drivers who are heading north to never park along highways to play in the snow. 

Use the highway shoulders for emergencies only. Parking on them to play in the snow is hazardous in the following ways:

• Other drivers may be distracted by your vehicle.
• Other drivers may pull over as well to play in the snow, compounding the problem.
• Your vehicle may interfere with first responders who need to use the shoulder.
• Plows can throw snow and ice far off highways.
• It’s much safer to re-enter highways from on-ramps and other designated entrances

"Also, it’s not uncommon for lots of desert dwellers to take the opportunity to head north to play in the snow. So, remember to pack your patience and expect to spend extended time in your vehicle getting to and from snow play areas."

ADOT's suggestions for items to take along:

• Warm clothing and blankets
• A fully charged mobile phone and charger
• Flashlight with extra batteries
• Drinking water
• Healthy snacks
• First-aid kit and necessary medications
• Ice scraper
• Small bag of sand or kitty litter for wheel traction
• Small folding shovel for snow removal
• Travel tool kit and battery cables
• Safety flares
• Plastic bags or containers for sanitation
• Road map(s)

ADOT says you and your vehicle must be prepared for driving in wintry conditions, including snow, ice and freezing temperatures.

• Get plenty of rest
• Plan your route in advance and notify someone about your route, destination and arrival time
• Take frequent breaks from driving
• Make sure your fuel tank is at least half to three-quarters full at all times
• Use snow tires, chains or studded tires as recommended or required. Studded tires are permitted on Arizona highways from Oct. 1 to May 1.
• Ensure your wipers, window defroster, headlights, taillights, brake lights and turn signals work
• Change your motor oil to a winter grade
• For electric or hybrid vehicles, be sure the battery has sufficient voltage and the connection cables are tight

Get more safety tips at https://azdot.gov/KnowSnow

For Flagstaff area snow-play locations, see FlagstaffArizona.org's Winter Recreation Map or call 844-256-SNOW