Today | Weather | Friday, September 25, 2026

Weather in Mesa, Arizona

07:30 AM
Now
Cloudy Weather
73° F
Feels Like 73°
Precipitation 6 %
Wind 5 mph
UV Index (0 - 11+) 1
Humidity 62 %
Today
Sunny with a Chance of Thunderstorms
Day 97°
Night 75°
Precipitation 55 %
Wind 5 mph
UV Index (0 - 11+) 6

Mesa Weather Forecast Updated

15 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 25, 2025)
Sunny with a Chance of Thunderstorms

Day

106°

Night

73°

Wind

8 mph

UV Index

60

Precipitation

55 %

Air Quality in Mesa

NOW
24 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.13 µg/m³
PM10 14.89 µg/m³
O3 0.025 ppm
NO2 0.6 ppb
SO2 0 ppb
CO 0.10 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)
PM2.5 – 3.13 µg/m³
PM10 – 14.89 µg/m³
O3 – 49.89 µg/m³
NO2 – 1.05 µg/m³
SO2 – 0.05 µg/m³
CO – 116.83 µg/m³
NH3 – 0.38 µg/m³
NO – 0 µg/m³