Hourly Weather | Today Thursday, May 21, 2026
Active Weather Warnings
Lafayette, Louisiana
11 AM
Stormy Weather
79°
Feels Like 82°
52
Humidity: 80%
UV Index: 2
Wind: 6 mph
12 PM
Cloudy Weather
79°
Feels Like 90°
48
Humidity: 79%
UV Index: 4
Wind: 6 mph
1 PM
Cloudy Weather
81°
Feels Like 91°
49
Humidity: 77%
UV Index: 4
Wind: 7 mph
2 PM
Stormy Weather
81°
Feels Like 82°
75
Humidity: 78%
UV Index: 2
Wind: 7 mph
3 PM
Cloudy Weather
79°
Feels Like 88°
49
Humidity: 78%
UV Index: 2
Wind: 8 mph
4 PM
Stormy Weather
79°
Feels Like 79°
75
Humidity: 80%
UV Index: 1
Wind: 8 mph
5 PM
Cloudy Weather
79°
Feels Like 84°
40
Humidity: 82%
UV Index: 1
Wind: 8 mph
6 PM
Cloudy Weather
77°
Feels Like 82°
34
Humidity: 84%
UV Index: 1
Wind: 7 mph
7 PM
Cloudy Weather
77°
Feels Like 81°
40
Humidity: 84%
UV Index: 0
Wind: 7 mph
8 PM
Stormy Weather
73°
Feels Like 72°
69
Humidity: 90%
UV Index: 0
Wind: 7 mph
9 PM
Stormy Weather
73°
Feels Like 73°
64
Humidity: 93%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Weather
73°
Feels Like 77°
49
Humidity: 94%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Weather
73°
Feels Like 77°
34
Humidity: 96%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

11 AM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.18 µg/m³
  • PM10: 3.2 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.09 ppm

Health Recommendations:

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

12 PM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.13 µg/m³
  • PM10: 3.06 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.4 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

1 PM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.06 µg/m³
  • PM10: 2.89 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

2 PM
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.04 µg/m³
  • PM10: 2.87 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

3 PM
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.1 µg/m³
  • PM10: 3.05 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.2 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

4 PM
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.15 µg/m³
  • PM10: 3.23 µg/m³
  • O3: 0.028 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

5 PM
26 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.06 µg/m³
  • PM10: 3.24 µg/m³
  • O3: 0.028 ppm
  • NO2: 0.3 ppb
  • SO2: 0.1 ppb
  • CO: 0.08 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.85 µg/m³
  • PM10: 3.05 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.3 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
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.66 µg/m³
  • PM10: 2.91 µg/m³
  • O3: 0.027 ppm
  • NO2: 0.3 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
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.58 µg/m³
  • PM10: 2.9 µg/m³
  • O3: 0.026 ppm
  • NO2: 0.3 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
23 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.59 µg/m³
  • PM10: 3.04 µg/m³
  • O3: 0.025 ppm
  • NO2: 0.3 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
22 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.65 µg/m³
  • PM10: 3.24 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.3 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
22 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.7 µg/m³
  • PM10: 3.36 µg/m³
  • O3: 0.024 ppm
  • NO2: 0.3 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 Lafayette

Severe Immediate Observed

Flood Warning

Flood Warning issued May 20 at 11:27PM CDT until May 22 at 7:00AM CDT by NWS Lake Charles LA
May 20, 11:27 PM May 22, 7:00 AM
...The Flood Warning is extended for the following rivers in
Louisiana...

Calcasieu River near White Oak Park

...The Flood Warning continues for the following rivers in
Louisiana...

Vermilion River At Lafayette, Surrey Street Gage

Additional information is available at www.weather.gov.

WHAT: Minor flooding is occurring and minor flooding is forecast.

WHERE: Vermilion River at Lafayette, Surrey Street Gage.

WHEN: Until Friday morning.

IMPACTS: At 10.0 feet, Minor flooding of Heymann Park off of
Highway 90 will occur.

ADDITIONAL DETAILS:
- At 11:15 PM CDT Wednesday the stage was 10.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 11:15 PM CDT Wednesday was 10.1 feet.
- Forecast...The river is expected to rise to a crest of 10.1
feet just after midnight tonight. It will then fall below
flood stage tomorrow evening.
- Flood stage is 10.0 feet.
- http://www.weather.gov/safety/flood
Updated: May 21, 8:38 AM Source: NWS Alert