Today | Weather | Tuesday, July 7, 2026
Active Weather Warnings

Weather in Mesa, Arizona

05:12 AM
Now
Cloudy Night
88° F
Feels Like 84°
Precipitation 0 %
Wind 5 mph
Humidity 28 %
Today
Cloudy Weather
Day 115°
Night 88°
Precipitation 0 %
Wind 7 mph
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Mesa Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (July 7, 2025)
Cloudy Weather

Day

111°

Night

88°

Wind

7 mph

UV Index

12

Precipitation

25 %

Air Quality in Mesa

NOW
26 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 6.27 µg/m³
PM10 27.54 µg/m³
O3 0.025 ppm
NO2 0.5 ppb
SO2 0 ppb
CO 0.08 ppm
NH3 1.22 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.56.27 µg/m³
PM1027.54 µg/m³
O349.99 µg/m³
NO21.03 µg/m³
SO20.08 µg/m³
CO90.06 µg/m³
NH31.22 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Mesa

Severe Future Likely

Extreme Heat Watch

Extreme Heat Watch issued July 5 at 12:15AM MST until July 9 at 8:00PM MST by NWS Phoenix AZ
Jul 7, 11:00 AM Jul 9, 9:00 PM
WHAT: Dangerously hot conditions possible. Afternoon temperatures
111 to 116. Major Heat Risk.

WHERE: Buckeye/Avondale, Central Phoenix, Deer Valley, East
Valley, North Phoenix/Glendale, Northwest Valley,
Scottsdale/Paradise Valley, South Mountain/Ahwatukee, and Southeast
Valley/Queen Creek.

WHEN: From Tuesday morning through Thursday evening.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.

ADDITIONAL DETAILS: In Maricopa County, call 2-1-1 to find a free
cooling center, transportation, water, and more.
http://www.maricopa.gov/heat
+ Read More
An Extreme Heat Watch means that a period of very hot temperatures, even by local standards, may occur. Actions should be taken to lessen the impact of the extreme heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Public cooling shelters are available in some areas. Consult county officials for more details.
Updated: Jul 5, 12:19 PM Source: NWS Alert
Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued July 7 at 12:12AM MST until July 9 at 8:00PM MST by NWS Phoenix AZ
Jul 7, 11:00 AM Jul 9, 9:00 PM
WHAT: Dangerously hot conditions. Afternoon temperatures 111 to
116 expected. Major Heat Risk.

WHERE: Buckeye/Avondale, Central Phoenix, Deer Valley, East
Valley, North Phoenix/Glendale, Northwest Valley,
Scottsdale/Paradise Valley, South Mountain/Ahwatukee, and Southeast
Valley/Queen Creek.

WHEN: From 10 AM this morning to 8 PM MST Thursday.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.

ADDITIONAL DETAILS: In Maricopa County, call 2-1-1 to find a free
cooling center, transportation, water, and more.
http://www.maricopa.gov/heat
+ Read More
An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible and drink plenty of water. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Public cooling shelters are available in some areas. Consult county officials for more details.
Updated: Jul 7, 5:01 AM Source: NWS Alert

Air Quality Alert

Air Quality Alert issued July 6 at 8:42AM MST by NWS Phoenix AZ
Jul 6, 9:42 AM Jul 7, 10:00 PM
AQAPSR

The Arizona Department of Environmental Quality (ADEQ) has issued an
Ozone High Pollution Advisory for the Phoenix Metro Area on Tuesday.

This means that forecast weather conditions combined with existing
ozone levels are expected to result in local maximum 8-hour ozone
concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.

Ozone is an air contaminant which can cause breathing difficulties
for children, older adults, as well as persons with respiratory
problems. A decrease in physical activity is recommended.

You are urged to car pool, telecommute or use mass transit.
The use of gasoline-powered equipment should be reduced or done late
in the day.

For details on this High Pollution Advisory, visit the ADEQ internet
site at www.azdeq.gov/forecast/phoenix or call 602-771-2300.
Updated: Jul 7, 5:01 AM Source: NWS Alert