Today | Weather | Monday, September 21, 2026

Weather in Galveston, Texas

01:57 PM
Now
Cloudy Weather
91° F
Feels Like 106°
Precipitation 47 %
Wind 8 mph
UV Index (0 - 11+) 7
Humidity 58 %
Today
Sunny with a Chance of Thunderstorms
Day 91°
Night 81°
Precipitation 55 %
Wind 6 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Galveston Weather Forecast Updated

21 minutes ago
Last updated on

Air Quality in Galveston

NOW
34 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.39 µg/m³
PM10 3.62 µg/m³
O3 0.037 ppm
NO2 0 ppb
SO2 0 ppb
CO 0.10 ppm
NH3 0 µg/m³
NO 0.01 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)
PM2.51.39 µg/m³
PM103.62 µg/m³
O373.11 µg/m³
NO20.06 µg/m³
SO20.11 µg/m³
CO114.17 µg/m³
NH30 µg/m³
NO0.01 µg/m³