Today | Weather | Wednesday, March 18, 2026

Weather in Phoenix, Arizona

10:45 PM
Now
Cloudy Night
84° F
Feels Like 82°
Precipitation 0 %
Wind 5 mph
Humidity 14 %
Today
Night
Day 100°
Night 73°
Precipitation 0 %
Wind 5 mph

Phoenix Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 18, 2025)
Sunny Weather

Day

72°

Night

50°

Wind

14 mph

UV Index

6

Precipitation

0 %

Air Quality in Phoenix

NOW
40 AQI
Good air quality Dominant pollutant: PM10

Pollutant Concentrations:

PM2.5 8.47 µg/m³
PM10 43.49 µg/m³
O3 0.041 ppm
NO2 0.4 ppb
SO2 0 ppb
CO 0.09 ppm
NH3 0.95 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)
PM2.58.47 µg/m³
PM1043.49 µg/m³
O379.93 µg/m³
NO20.75 µg/m³
SO20.04 µg/m³
CO100.64 µg/m³
NH30.95 µg/m³
NO0 µg/m³