Today | Weather | Thursday, September 4, 2025
Active Weather Warnings

Weather in Gilbert, Arizona

06:07 PM
Now
Stormy Weather
91° F
Feels Like 91°
Precipitation 51 %
Wind 13 mph
UV Index (0 - 11+) 1
Humidity 54 %
Today
Sunny with a Chance of Thunderstorms
Day 93°
Night 75°
Precipitation 55 %
Wind 11
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Gilbert Weather Forecast Updated

58 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (September 4, 2024)

Sunny Weather

Day

109°

Night

82°

Wind

6 mph

UV Index

8

Precipitation

0

Air quality in Gilbert

NOW
53 AQI
Moderate air quality Dominant pollutant: PM10

Pollutant Concentrations:

PM2.5 10.36 µg/m³
PM10 59.47 µg/m³
O₃ 52.11 ppb
NO₂ 5.48 ppb
SO₂ 0.40 ppb
CO 139.94 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.

Weather Alerts and Warnings for Gilbert

Severe Future Possible

Flood Watch

Flood Watch issued September 4 at 12:57PM MST until September 5 at 12:00AM MST by NWS Phoenix AZ
Sep 4, 1:57 PM Sep 5, 1:00 AM
WHAT: Flooding caused by excessive rainfall continues to be
possible.

WHERE: A portion of south central Arizona, including the
following areas, Aguila Valley, Apache Junction/Gold Canyon,
Buckeye/Avondale, Cave Creek/New River, Central Phoenix, Deer
Valley, Dripping Springs, East Valley, Fountain Hills/East Mesa,
Gila Bend, Globe/Miami, Mazatzal Mountains, New River Mesa, North
Phoenix/Glendale, Northwest Pinal County, Northwest Valley,
Pinal/Superstition Mountains, Rio Verde/Salt River, San Carlos,
Scottsdale/Paradise Valley, Sonoran Desert Natl Monument, South
Mountain/Ahwatukee, Southeast Gila County, Southeast Valley/Queen
Creek, Superior, Tonopah Desert, Tonto Basin and West Pinal County.

WHEN: Until midnight MST tonight.

IMPACTS: Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Low-water crossings may be flooded.

ADDITIONAL DETAILS:
- High atmospheric moisture content in combination with slow
moving showers and thunderstorms may result in heavy rainfall
and flooding in the watch area.
- http://www.weather.gov/safety/flood
+ Read More
You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Updated: Sep 4, 6:08 PM Source: NWS Alert

Air Quality Alert

Air Quality Alert issued September 3 at 9:51AM MST by NWS Phoenix AZ
Sep 3, 10:51 AM Sep 4, 10:00 PM
AQAPSR

The Arizona Department of Environmental Quality (ADEQ) has issued an
Ozone High Pollution Advisory for the Phoenix Metro Area Through Thursday.

This means that forecast weather conditions combined with existing
ozone levels are expected to result in local maximum 8-hour ozone
concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.

Ozone is an air contaminant which can cause breathing difficulties
for children, older adults, as well as persons with respiratory
problems. A decrease in physical activity is recommended.

You are urged to car pool, telecommute or use mass transit.
The use of gasoline-powered equipment should be reduced or done late
in the day.

For details on this High Pollution Advisory, visit the ADEQ internet
site at www.azdeq.gov/forecast/phoenix or call 602-771-2300.
Updated: Sep 4, 6:08 PM Source: NWS Alert