Arizona weather forecast: Anyone else notice a bit of a cool down in Phoenix? (2024)

Sunday in Phoenix is noticeably cooler than Saturday!

"There's been a notable change in temperatures today, compared to yesterday. The 24-hour temperature change as of 1:40 MST is in the 5-15 °F cooler range. The "coolest" areas are where clouds have prevailed the longest. Phoenix did not reach 100°F until close to 1 PM," the National Weather Service in Phoenix said on X.

The low on Sunday was 88. The high was 105.

In Flagstaff, thunderstorms are expected Sunday, as well as possible flooding.

"Storms will continue to develop this afternoon across N. AZ, most numerous north of I-40 where there is an enhanced risk of flash flooding," NWS in Flagstaff said at 12:25 p.m. on X.

Low temperatures this morning were mostly in the 80s across the lower deserts. There are also some breezy southerly winds this morning, most notable in Southwest AZ and Southeast CA where gusts have reached up to 25-35 mph. #azwx #cawx pic.twitter.com/6fxF7rqey6

— NWS Phoenix (@NWSPhoenix) August 11, 2024

There's been a notable change in temperatures today, compared to yesterday. The 24-hour temperature change as of 1:40 MST is in the 5-15 °F cooler range. The "coolest" areas are where clouds have prevailed the longest. Phoenix did not reach 100°F until close to 1 PM. #azwx #cawx pic.twitter.com/TiPunOdczP

— NWS Phoenix (@NWSPhoenix) August 11, 2024

Radar Update 12:15 PM MST: Storms will continue to develop this afternoon across N. AZ, most numerous north of I-40 where there is an enhanced risk of flash flooding. #azwx pic.twitter.com/HyHKg5MDyI

— NWS Flagstaff (@NWSFlagstaff) August 11, 2024

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. +103 degrees, 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

Driving in extreme temperatures

The Arizona Department of Transportation’s tips for driving in extreme temperatures include:

Have sun protection: In addition to an umbrella, take sunscreen and a wide-brimmed hat and wear loose-fitting, light-colored cotton clothing.

Fuel up: Keep your tank at three-quarters full. Running out of gas, especially in a remote location, is dangerous in extreme heat.

Hydrate: Take a cooler to keep extra drinking water cold, and consider adding several frozen bottles of water to use for cooling off or to thaw and drink if needed. Make sure everyone, including pets, stays hydrated.

Get help: If your vehicle breaks down in extreme heat, call for assistance right away to reduce wait time, and run the AC. If the AC isn’t working, roll down all windows.

Wait safely: If the temperature inside your vehicle becomes too hot, everyone, including pets, should exit carefully and seek out or create a shaded area as far away from the travel lanes as possible. Be careful walking on the road surface, which can be hot enough to burn skin. Keep your shoes on and try to keep your pets’ paws off the pavement. If you are stopped along the highway, raise the front hood and turn on hazard lights. Please keep in mind that parking in tall brush can start a fire.

Check your vehicle: You can help avoid breakdowns and blowouts by making sure your vehicle is in good operating condition. Check your air conditioner and coolant levels, top off any vital engine fluids and make sure your battery is up to par. Check your tire pressure, as the combination of under inflated tires and hot pavement can lead to a blowout.

Preparing for a severe thunderstorm

The American Red Cross' tips for preparing for a severe thunderstorm:

  • Put together an emergency kit.

  • Know your community’s evacuation plan.

  • Create a household disaster plan and practice it.

  • Purchase a battery-powered or hand-crank radio

  • Discuss thunderstorm safety with members of your household. Be aware that a thunderstorm could produce flooding.

  • Pick a safe place in your home for household members to gather during a thunderstorm. This should be a place where there are no windows, skylights, or glass doors, which could be broken by strong winds or hail and cause damage or injury.

Be prepared and stay safe during the monsoon

"Most Valley residents know how quickly and furiously storms can move in and out, bringing strong winds, dust, rain, and flash flooding. These storms can cause interruptions in services, such as water, power, and gas," stated Captain Ashley Losch of the Glendale Fire Department.

GFD reminds residents of ways they can be prepared and stay safe:

  • Have flashlights with extra batteries on hand.

  • Have food that can be prepared without the need for cooking or refrigeration.

  • Have at least one gallon of clean water for each person in the household.

  • Have backup power for anyone requiring power for a medical device.

  • Have backup power for cell phones that do not require charging.

  • Have a first aid kit ready and accessible.

  • Never drive into areas with flowing water; it takes less than 10 inches to wash a car away.

  • Avoid flooded areas, such as washes.

  • If waters are rising, seek higher ground.

  • Do not approach downed power lines, the ground can be energized for up to 200 feet.

  • Keep pets indoors during storms.

MORE: https://azdot.gov/about/transportation-safety/severe-weather

Arizona weather forecast: Anyone else notice a bit of a cool down in Phoenix? (2024)

FAQs

What month does it start to cool down in Arizona? ›

This is an ongoing trend as Arizona summers often exceed 100 degrees with July and August being particularly hot. On brand with the nickname "Valley of the Sun," Arizona weather starts getting warm as soon as late May and grips on, not dipping into 90 degrees or lower until well into September or October.

Where is the weather cooler in Arizona? ›

Head to Greer in the White Mountains to beat the heat by escaping from the valley. Located over 8,500 feet above sea level, Greer is much cooler than the surrounding deserts, you can travel up to the 9,500 foot level to explore Big Lake, where you can camp, fish and swim above the deserts.

What's the coldest it's ever been in Phoenix Arizona? ›

The all-time lowest recorded temperature in Phoenix was 16 °F (−9 °C) on January 7, 1913, while the coldest daily high temperature ever recorded was 36 °F (2 °C) on December 10, 1898. The longest continuous stretch without a day of frost in Phoenix was nearly eight years, from December 27, 1990, to December 23, 1998.

What will the temperature be in 2050 in Phoenix? ›

By 2050, people in Phoenix are projected to experience an average of about 47 days per year over 110.0ºF. Climate change is increasing the frequency and intensity of heat waves, even in places with cooler average temperatures. See more information on heat risk.

Is Arizona going to have a hot summer in 2024? ›

Phoenix heat experts expect 2024 to break the record for hottest summer in history.

What are the 3 hottest months in Arizona? ›

The mean average temperature between 1991 and 2020 for July is 95.5 degrees in Phoenix. August was typically the second hottest month with a mean average temperature of 94.4 degrees. June followed, with a mean average temperature of 91.4 degrees.

Which city in Arizona has the coolest summer? ›

Surrounded by pine forests, Greer offers a cool and peaceful respite with temperatures averaging around 75°F (24°C) during the summer months, making it one of the coldest places in Arizona.

What is the hottest town in Arizona? ›

Lake Havasu City hit 128 degrees on June 29, 1994, making it the hottest temperature ever recorded in the state, according to the National Weather Service. This is just 6 degrees cooler than the record high in Death Valley. The highest temperature recorded in Phoenix was 122 degrees on June 26, 1990.

What town in Arizona has the best weather? ›

It's very sunny around the entire state most of the year. In Phoenix, we see about 300 sunny days. Yuma, in southwest Arizona, is the sunniest city in the state with more than 320 sunny days. Even in Flagstaff, in the mountains, we see about 260 days with sunshine.

What is the coolest place to live in Arizona? ›

1. Tucson, AZ. Tucson tops our list as the best place to live in Arizona. Home to gorgeous weather, a world-renowned cycling race, and surrounded by four mountain ranges providing endless vistas and hiking trails, Tucson is truly an outdoor haven.

How many 100 degree days are in Phoenix in 2024? ›

In 2024, Phoenix shattered over a dozen all-time heat records. Here's what they are. Phoenix's heat continues to break records. As of Thursday, the city has endured an 81-day streak of temperatures reaching 100 degrees or higher, surpassing the previous record of 76 days set in August 1993.

What is the hottest it has ever been in Phoenix, Arizona? ›

Extreme Temperature Facts for Phoenix,Yuma, and El Centro
Phoenix Period of Record (POR) (1896-2023)
Top 5 Hottest Days1. 122 (26 Jun 1990) 2. 121 (28 Jul 1995) 3. 120 (25 Jun 1990) 4. 119 (25 Jul 2023) 119 (20 Jul 2023 and 2 other times)
Average number of 32° F or lower days per year8 (POR) 1 (1991-2020)
22 more rows

Is Arizona hotter than it used to be? ›

Average July temperatures in the 1920s were between 89.3 and 92.7 degrees in Phoenix's urban environments, data from the National Weather Service show. In the past 10 years, that average has not dipped below 94.7 and hit a new high of 102.7 degrees in 2023.

What year was Phoenix the coldest? ›

World: Lowest Temperature
Record Value-89.2°C (-128.6°F)
Formal WMO ReviewYes (2011)
Length of Record1912-present
InstrumentationMaximum/Minimum Thermometer in Standard Stevenson Screen
Geospatial LocationVostok, Antarctica [77°32'S, 106°40'E, elevation: 3420m (11,220ft)]
1 more row

Is 2024 going to be hot? ›

"If we look at the forecast for the next three months in the long range, it's suggesting that the trend that we're seeing in baseline warming could continue, and so 2024 could rival 2023 for being the hottest year on record, which is very scary," says Chloe Brimicombe, a heatwave researcher at the University of Graz.

What month is the coolest in Arizona? ›

Phoenix Weather Highlights

December is the coolest month with highs around 66 and lows in the mid-40s.

What is the hottest date in Arizona? ›

Extreme Temperature Facts for Phoenix,Yuma, and El Centro
Phoenix Period of Record (POR) (1896-2023)
Top 5 Hottest Days1. 122 (26 Jun 1990) 2. 121 (28 Jul 1995) 3. 120 (25 Jun 1990) 4. 119 (25 Jul 2023) 119 (20 Jul 2023 and 2 other times)
Average number of 32° F or lower days per year8 (POR) 1 (1991-2020)
22 more rows

Which feels hotter, Florida or Arizona? ›

In Orlando, Florida, 98 degrees with 78% humidity will make you feel like you just stepped into a hot shower, but 112 degrees in Phoenix, Arizona, with 16% humidity will feel extremely hot. However, the way your body responds to the heat with less moisture in the air is a little different.

What city in Arizona has the coolest summer temperatures? ›

The coolest place to live would likely be in Flagstaff though. Because of the altitude it does not get that hot during the day but temps can drop into the cold range overnight. Flagstaff is a bigger city relative to a lot of the smaller high desert places with milder summers so more opportunities for jobs.

References

Top Articles
Latest Posts
Article information

Author: Margart Wisoky

Last Updated:

Views: 6101

Rating: 4.8 / 5 (58 voted)

Reviews: 81% of readers found this page helpful

Author information

Name: Margart Wisoky

Birthday: 1993-05-13

Address: 2113 Abernathy Knoll, New Tamerafurt, CT 66893-2169

Phone: +25815234346805

Job: Central Developer

Hobby: Machining, Pottery, Rafting, Cosplaying, Jogging, Taekwondo, Scouting

Introduction: My name is Margart Wisoky, I am a gorgeous, shiny, successful, beautiful, adventurous, excited, pleasant person who loves writing and wants to share my knowledge and understanding with you.