Today | Weather | Saturday, July 25, 2026

Weather in Tucson, Arizona

11:37 PM
Today
Stormy Weather
Day 108°
Night 82°
Precipitation 55 %
Wind 6 mph

Tucson Weather Forecast Updated

Weather Forecast History
Last Year's Weather on This Day (July 25, 2025)
Cloudy Night

Day

104°

Night

73°

Wind

7 mph

Precipitation

0 %

Air Quality in Tucson

NOW
23 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.75 µg/m³
PM10 8.78 µg/m³
O3 0.025 ppm
NO2 0.9 ppb
SO2 0 ppb
CO 0.08 ppm
NH3 2.79 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)
PM2.53.75 µg/m³
PM108.78 µg/m³
O348.87 µg/m³
NO21.73 µg/m³
SO20.09 µg/m³
CO90.7 µg/m³
NH32.79 µg/m³
NO0 µg/m³