Hourly Weather | Today Wednesday, May 20, 2026
Active Weather Warnings
Galveston, Texas
6 PM
Cloudy Weather
81°
Feels Like 86°
48
Humidity: 80%
UV Index: 1
Wind: 11 mph
7 PM
Stormy Weather
79°
Feels Like 82°
52
Humidity: 85%
UV Index: 0
Wind: 12 mph
8 PM
Stormy Weather
79°
Feels Like 79°
51
Humidity: 81%
UV Index: 0
Wind: 12 mph
9 PM
Cloudy Night
77°
Feels Like 81°
47
Humidity: 87%
UV Index: 0
Wind: 12 mph
10 PM
Cloudy Weather
77°
Feels Like 82°
40
Humidity: 87%
UV Index: 0
Wind: 12 mph
11 PM
Cloudy Weather
77°
Feels Like 81°
33
Humidity: 91%
UV Index: 0
Wind: 12 mph

Hourly Air Quality Forecast - AQI (US EPA)

6 PM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.76 µg/m³
  • PM10: 12.98 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

7 PM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.46 µg/m³
  • PM10: 11.02 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

8 PM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.11 µg/m³
  • PM10: 9.19 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

9 PM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.03 µg/m³
  • PM10: 8.58 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

10 PM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.36 µg/m³
  • PM10: 9.71 µg/m³
  • O3: 0.022 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

11 PM
21 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.79 µg/m³
  • PM10: 11.31 µg/m³
  • O3: 0.023 ppm
  • NO2: 0.1 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Galveston

Moderate Expected Likely

Rip Current Statement

Rip Current Statement issued May 20 at 2:42PM CDT until May 21 at 9:00PM CDT by NWS Houston/Galveston TX
May 20, 2:42 PM May 21, 9:00 PM
WHAT: Dangerous rip currents.

WHERE: Gulf-facing beaches, including the Matagorda
Peninsula, Brazoria County beaches, Galveston Island and the
Bolivar Peninsula.

WHEN: Through Thursday evening.

IMPACTS: Rip currents can sweep even the best swimmers away
from shore into deeper water.
+ Read More
Swim near a lifeguard and away from rocks, jetties, and piers. If caught in a rip current, relax and float. Don't swim against the current. If able, swim in a direction following the shoreline. If unable to escape, face the shore and call or wave for help.
Updated: May 20, 5:46 PM Source: NWS Alert