Today | Weather | Saturday, September 5, 2026

Weather in Mesa, Arizona

04:12 AM
Now
Cloudy Night
84° F
Feels Like 82°
Precipitation 3 %
Wind 6 mph
Humidity 47 %
Today
Cloudy Weather
Day 102°
Night 82°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 7

Mesa Weather Forecast Updated

18 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 5, 2025)
Cloudy Night

Day

97°

Night

77°

Wind

7 mph

Precipitation

25 %

Air Quality in Mesa

NOW
30 AQI
Good air quality Dominant pollutant: PM10

Pollutant Concentrations:

PM2.5 6.37 µg/m³
PM10 32.81 µg/m³
O3 0.021 ppm
NO2 0.3 ppb
SO2 0 ppb
CO 0.08 ppm
NH3 0.46 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)
PM2.56.37 µg/m³
PM1032.81 µg/m³
O342.18 µg/m³
NO20.62 µg/m³
SO20.06 µg/m³
CO94.96 µg/m³
NH30.46 µg/m³
NO0 µg/m³