Today | Weather | Friday, September 18, 2026

Weather in Phoenix, Arizona

08:35 AM
Now
Sunny Weather
82° F
Feels Like 90°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 3
Humidity 61 %
Today
Cloudy Weather
Day 102°
Night 79°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 7

Phoenix Weather Forecast Updated

4 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 18, 2025)
Stormy Weather

Day

99°

Night

75°

Wind

7 mph

Precipitation

80 %

Air Quality in Phoenix

NOW
29 AQI
Good air quality Dominant pollutant: PM10

Pollutant Concentrations:

PM2.5 6.08 µg/m³
PM10 31.67 µg/m³
O3 0.021 ppm
NO2 0.6 ppb
SO2 0 ppb
CO 0.09 ppm
NH3 0.61 µg/m³
NO 0.16 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)
PM2.56.08 µg/m³
PM1031.67 µg/m³
O341.05 µg/m³
NO21.21 µg/m³
SO20.04 µg/m³
CO105.76 µg/m³
NH30.61 µg/m³
NO0.16 µg/m³