Today | Weather | Tuesday, July 21, 2026

Weather in Gilbert, Arizona

01:08 AM
Now
Rainy Weather
82° F
Feels Like 84°
Precipitation 40 %
Wind 7 mph
Humidity 67 %
Today
Stormy Weather
Day 100°
Night 82°
Precipitation 55 %
Wind 8 mph
UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Gilbert Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (July 21, 2025)
Stormy Weather

Day

100°

Night

75°

Wind

10 mph

Precipitation

96 %

Air Quality in Gilbert

NOW
21 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.37 µg/m³
PM10 17.36 µg/m³
O3 0.023 ppm
NO2 0.2 ppb
SO2 0 ppb
CO 0.08 ppm
NH3 0.41 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)
PM2.53.37 µg/m³
PM1017.36 µg/m³
O344.73 µg/m³
NO20.45 µg/m³
SO20.06 µg/m³
CO86.07 µg/m³
NH30.41 µg/m³
NO0 µg/m³