Today | Weather | Wednesday, May 20, 2026

Weather in Pasadena, Texas

03:50 PM
Now
Cloudy Weather
81° F
Feels Like 86°
Precipitation 46 %
Wind 9 mph
UV Index (0 - 11+) 2
Humidity 78 %
Today
Stormy Weather
Day 81°
Night 73°
Precipitation 100 %
Wind 8 mph
UV Index (0 - 11+) 4

Pasadena Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (May 20, 2025)
Sunny with a Chance of Thunderstorms

Day

91°

Night

73°

Wind

8 mph

UV Index

7

Precipitation

55 %

Air Quality in Pasadena

NOW
20 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.6 µg/m³
PM10 7.4 µg/m³
O3 0.022 ppm
NO2 0.2 ppb
SO2 0.1 ppb
CO 0.09 ppm
NH3 0.19 µg/m³
NO 0.02 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

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

Show raw pollutant concentrations (µg/m³)
PM2.53.6 µg/m³
PM107.4 µg/m³
O343.18 µg/m³
NO20.44 µg/m³
SO20.22 µg/m³
CO105.51 µg/m³
NH30.19 µg/m³
NO0.02 µg/m³