Today | Weather | Monday, February 23, 2026

Weather in Mesa, Arizona

04:04 PM
Now
Cloudy Weather
86° F
Feels Like 86°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 2
Humidity 10 %
Today
Cloudy Weather
Day 86°
Night 52°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 5

Mesa Weather Forecast Updated

22 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 23, 2025)
Sunny Weather

Day

82°

Night

46°

Wind

4 mph

UV Index

5

Precipitation

0 %

Air Quality in Mesa

NOW
72 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.31 µg/m³
PM10 10.7 µg/m³
O3 0.061 ppm
NO2 0.3 ppb
SO2 0.1 ppb
CO 0.10 ppm
NH3 0.45 µg/m³
NO 0.06 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)
PM2.53.31 µg/m³
PM1010.7 µg/m³
O3119.8 µg/m³
NO20.48 µg/m³
SO20.23 µg/m³
CO119.48 µg/m³
NH30.45 µg/m³
NO0.06 µg/m³