❮
Today Tomorrow Hourly 7 days 30 days September
❯
Today | Weather | Thursday, September 25, 2025
Active Weather Warnings

Weather in Pasadena, Texas

06:25 PM
Now
Cloudy Weather
88° F
Feels Like 90°
Precipitation 0 %
Wind 6 mph
UV Index (0 - 11+) 10
Humidity 49 %
Today
Cloudy Weather
Day 90°
Night 72°
Precipitation 25 %
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.

Pasadena Weather Forecast Updated

Last updated on

Weather Forecast History

Last Year's Weather on This Day (September 25, 2024)

Sunny with a Chance of Thunderstorms

Day

91°

Night

73°

Wind

6 mph

UV Index

7

Precipitation

40

Air quality in Pasadena

NOW
80 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 6.66 µg/m³
PM10 6.83 µg/m³
O₃ 56.66 ppb
NO₂ 9.15 ppb
SO₂ 1.06 ppb
CO 197.07 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.

View Hourly Air Quality Forecast

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