Hourly Weather | Today Thursday, September 25, 2025
Active Weather Warnings
Pasadena, Texas
9 PM
Night
82°
Feels Like 82°
0
Humidity: 63%
Wind: 6 mph
UV Index: 0
10 PM
Night
79°
Feels Like 81°
0
Humidity: 68%
Wind: 6 mph
UV Index: 0
11 PM
Night
79°
Feels Like 81°
0
Humidity: 70%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

9 PM
38 AQI
Good air quality Dominant pollutant: o3
Details

Pollutant Concentrations:

  • PM2.5: 9.23 µg/m³
  • PM10: 19.32 µg/m³
  • O₃: 29.78 ppb
  • NO₂: 8.90 ppb
  • SO₂: 0.57 ppb
  • CO: 142.74 ppb

Health Recommendations:

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

10 PM
36 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 9.04 µg/m³
  • PM10: 18.05 µg/m³
  • O₃: 27.84 ppb
  • NO₂: 10.65 ppb
  • SO₂: 0.67 ppb
  • CO: 159.61 ppb

Health Recommendations:

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

11 PM
38 AQI
Good air quality Dominant pollutant: pm25
Details

Pollutant Concentrations:

  • PM2.5: 9.00 µg/m³
  • PM10: 15.82 µg/m³
  • O₃: 28.35 ppb
  • NO₂: 11.37 ppb
  • SO₂: 0.75 ppb
  • CO: 176.89 ppb

Health Recommendations:

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

Weather Alerts and Warnings for Pasadena

Air Quality Alert

Air Quality Alert issued September 25 at 3:06PM CDT by NWS Houston/Galveston TX
Sep 25, 3:06 PM Sep 26, 7:15 PM
AQAHGX

The Texas Commission on Environmental Quality (TCEQ) has issued an
Ozone Action Day for the Houston, Galveston, and Brazoria area for
Friday, September 26, 2025.

Atmospheric conditions are expected to be favorable for producing
high levels of ozone pollution in the Houston, Galveston, and
surrounding areas on Friday. You can help prevent ozone pollution by
sharing a ride, walking, riding a bicycle, taking your lunch to work,
avoiding drive through lanes, conserving energy and keeping your vehicle
properly tuned.

For more information on ozone:
Ozone: The Facts www.tceq.texas.gov/airquality/monops/ozonefacts.html
EPA AirNow: www.airnow.gov/?city=Houston&state=TX&country=USA
Take Care of Texas:
www.takecareoftexas.org/conservation-tips/keep-our-air-clean
Updated: Sep 25, 4:44 PM Source: NWS Alert