Today | Weather | Wednesday, March 18, 2026

Weather in Galveston, Texas

04:17 AM
Now
Cloudy Night
55° F
Feels Like 50°
Precipitation 0 %
Wind 12 mph
Humidity 68 %
Today
Cloudy Weather
Day 70°
Night 61°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 7

Galveston Weather Forecast Updated

Last updated on

Air Quality in Galveston

NOW
84 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.08 µg/m³
PM10 3.08 µg/m³
O3 0.065 ppm
NO2 0.1 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 0.27 µg/m³
NO 0 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.51.08 µg/m³
PM103.08 µg/m³
O3127.57 µg/m³
NO20.18 µg/m³
SO20.23 µg/m³
CO128.08 µg/m³
NH30.27 µg/m³
NO0 µg/m³