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Today | Weather | Monday, September 1, 2025

Weather in Tucson, Arizona

08:02 AM
Now
Cloudy WeatherCloudy weather, overcast skies with clouds.
84° F
Feels Like 86°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 11
Humidity 39 %
Today
Sunny with a Chance of ThunderstormsSunny weather with a possibility of isolated thunderstorms developing later in the day.
Day 100°
Night 81°
Precipitation 55 %
Wind 8 mph
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.

Tucson Weather Forecast Updated

Last updated on

Weather Forecast History

Last Year's Weather on This Day (September 1, 2024)

Sunny with a Chance of ThunderstormsSunny weather with a possibility of isolated thunderstorms developing later in the day.

Day

99°

Night

79°

Wind

7 mph

UV Index

9

Precipitation

40

Air quality in Tucson

NOW
38 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.09 µg/m³
PM10 5.01 µg/m³
O₃ 38.15 ppb
NO₂ 1.60 ppb
SO₂ 0.26 ppb
CO 111.94 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

With this level of air quality, you have no limitations. Enjoy the outdoors

View Hourly Air Quality Forecast