Today | Weather | Thursday, December 4, 2025

Weather in Mesa, Arizona

02:29 AM
Now
Cloudy Night
46° F
Feels Like 45°
Precipitation 0 %
Wind 6 mph
Humidity 66 %
Today
Cloudy Weather
Day 66°
Night 39°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 3

Mesa Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 4, 2024)
Cloudy Night

Day

73°

Night

50°

Wind

4 mph

Precipitation

0 %

Air Quality in Mesa

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

Pollutant Concentrations:

PM2.5 8.71 µg/m³
PM10 37.84 µg/m³
O3 0.033 ppm
NO2 1.2 ppb
SO2 0 ppb
CO 0.11 ppm
NH3 1.11 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)
PM2.58.71 µg/m³
PM1037.84 µg/m³
O364.45 µg/m³
NO22.21 µg/m³
SO20.1 µg/m³
CO123.92 µg/m³
NH31.11 µg/m³
NO0 µg/m³