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Active Weather Warnings

Air Quality Alert

Friday, September 26, 2025

Day 90°

Night 70°

Precipitation 0 %

Wind 7 mph

UV Index (0 - 11+) 11

Saturday

Weather Forecast History

Last Year's Weather on This Day (September 26, 2024)

Day

88°

Night

68°

Wind

6 mph

Precipitation

Air quality in

NOW

39 AQI

Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 8.65 µg/m³

PM10 13.26 µg/m³

O₃ 29.30 ppb

NO₂ 10.74 ppb

SO₂ 0.77 ppb

CO 185.81 ppb

PM_2.5 – 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

Weather Alerts and Warnings for

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