Today | Weather | Monday, September 14, 2026

Weather in Mesa, Arizona

12:01 AM
Now
Cloudy Night
86° F
Feels Like 86°
Precipitation 29 %
Wind 6 mph
Humidity 49 %
Today
Sunny with a Chance of Thunderstorms
Day 102°
Night 81°
Precipitation 55 %
Wind 7 mph
UV Index (0 - 11+) 7

Mesa Weather Forecast Updated

43 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 14, 2025)
Sunny Weather

Day

99°

Night

72°

Wind

5 mph

UV Index

70

Precipitation

0 %

Air Quality in Mesa

NOW
24 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.18 µg/m³
PM10 19.83 µg/m³
O3 0.026 ppm
NO2 0.2 ppb
SO2 0 ppb
CO 0.09 ppm
NH3 0.38 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)
PM2.54.18 µg/m³
PM1019.83 µg/m³
O350.4 µg/m³
NO20.35 µg/m³
SO20.05 µg/m³
CO101.44 µg/m³
NH30.38 µg/m³
NO0 µg/m³