Hourly Weather | Today Sunday, October 12, 2025
Active Weather Warnings
Tucson, Arizona
12 PM
Stormy Weather
79°
Feels Like 79°
64
Humidity: 67%
Wind: 7 mph
UV Index: 11
1 PM
Cloudy Weather
79°
Feels Like 82°
49
Humidity: 66%
Wind: 7 mph
UV Index: 15
2 PM
Cloudy Weather
79°
Feels Like 81°
49
Humidity: 63%
Wind: 7 mph
UV Index: 12
3 PM
Stormy Weather
77°
Feels Like 75°
59
Humidity: 72%
Wind: 7 mph
UV Index: 6
4 PM
Cloudy Weather
75°
Feels Like 77°
49
Humidity: 75%
Wind: 7 mph
UV Index: 5
5 PM
Stormy Weather
73°
Feels Like 72°
64
Humidity: 82%
Wind: 7 mph
UV Index: 2
6 PM
Cloudy Weather
73°
Feels Like 73°
49
Humidity: 79%
Wind: 7 mph
UV Index: 0
7 PM
Cloudy Weather
73°
Feels Like 73°
34
Humidity: 77%
Wind: 6 mph
UV Index: 0
8 PM
Cloudy Weather
72°
Feels Like 72°
34
Humidity: 79%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Weather
72°
Feels Like 72°
39
Humidity: 82%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Weather
70°
Feels Like 70°
49
Humidity: 85%
Wind: 6 mph
UV Index: 0
11 PM
Stormy Weather
70°
Feels Like 64°
69
Humidity: 87%
Wind: 7 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

12 PM
19 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.97 µg/m³
  • O3: 0.020 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

1 PM
19 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1 µg/m³
  • O3: 0.021 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.09 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

2 PM
19 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.07 µg/m³
  • O3: 0.020 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

3 PM
18 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.1 µg/m³
  • O3: 0.019 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

4 PM
18 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.2 µg/m³
  • O3: 0.019 ppm
  • NO2: 0.1 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

5 PM
18 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.41 µg/m³
  • O3: 0.019 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

6 PM
18 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.52 µg/m³
  • PM10: 1.6 µg/m³
  • O3: 0.019 ppm
  • NO2: 0.2 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

7 PM
17 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.52 µg/m³
  • PM10: 1.72 µg/m³
  • O3: 0.019 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

8 PM
17 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.75 µg/m³
  • O3: 0.018 ppm
  • NO2: 0.3 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

9 PM
16 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.75 µg/m³
  • O3: 0.017 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

10 PM
15 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.56 µg/m³
  • O3: 0.017 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

11 PM
15 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 1.31 µg/m³
  • O3: 0.016 ppm
  • NO2: 0.4 ppb
  • SO2: 0 ppb
  • CO: 0.08 ppm

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Weather Alerts and Warnings for Tucson

Severe Future Possible

Flood Watch

Flood Watch issued October 12 at 6:41AM MST until October 13 at 5:00PM MST by NWS Tucson AZ
Oct 12, 7:41 AM Oct 13, 6:00 PM
WHAT: Flooding caused by excessive rainfall continues to be
possible.

WHERE: A portion of Southeast Arizona, including the following
areas, Baboquivari Mountains, Catalina and Rincon Mountains,
Chiricahua Mountains, Dragoon and Mule and Huachuca and Santa Rita
Mountains, Eastern Cochise County below 5000 feet, Galiuro and
Pinaleno Mountains, South Central Pinal County, Southeast Pinal
County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River
Valley, Upper San Pedro River Valley, Upper Santa Cruz River
Valley/Altar Valley and Western Pima County.

WHEN: Through Monday afternoon.

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

ADDITIONAL DETAILS:
- Abundant moisture may lead to a periods of moderate to heavy
rainfall and scattered thunderstorms through Monday.
Additional rainfall totals of 0.5 inches to 2 inches are
expected with locally higher amounts.
- 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: Oct 12, 11:19 AM Source: NWS Alert