Today | Weather | Wednesday, March 18, 2026

Weather in Phoenix, Arizona

07:57 AM
Now
Sunny Weather
73° F
Feels Like 75°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 2
Humidity 21 %
Today
Hot Day
Day 102°
Night 66°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 6

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
45 AQI
Good air quality Dominant pollutant: PM10

Pollutant Concentrations:

PM2.5 9.31 µg/m³
PM10 48.97 µg/m³
O3 0.033 ppm
NO2 0.5 ppb
SO2 0 ppb
CO 0.10 ppm
NH3 1.86 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)
PM2.59.31 µg/m³
PM1048.97 µg/m³
O365.21 µg/m³
NO21 µg/m³
SO20.12 µg/m³
CO112.49 µg/m³
NH31.86 µg/m³
NO0 µg/m³