Today | Weather | Sunday, March 15, 2026

Weather in Mesa, Arizona

07:55 PM
Now
Cloudy Night
81° F
Feels Like 79°
Precipitation 0 %
Wind 5 mph
Humidity 14 %
Today
Cloudy Weather
Day 90°
Night 61°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 6

Mesa Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 15, 2025)
Cloudy Weather

Day

68°

Night

45°

Wind

6 mph

UV Index

6

Precipitation

13 %

Air Quality in Mesa

NOW
54 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 13.97 µg/m³
PM10 52.33 µg/m³
O3 0.055 ppm
NO2 0.3 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 0.56 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.513.97 µg/m³
PM1052.33 µg/m³
O3107.85 µg/m³
NO20.65 µg/m³
SO20.23 µg/m³
CO121.72 µg/m³
NH30.56 µg/m³
NO0 µg/m³