Ozone and PM2.5 Air Quality Index (AQI) Forecast
Issued: Monday, December 22, 2025, 2:32 PM
Monday and Tuesday, light southerly to southeasterly winds will limit pollutant dispersion as a surface ridge of high pressure gradually stretches across the state from the east. In addition, evening temperature inversions will inhibit atmospheric mixing, and overnight fog and mist will enhance particle formation. These conditions will lead to high-Good to low-Moderate AQI levels in most locations on both days. Christmas Eve, as the high pressure system moves directly over the Bayou State, light and variable winds will allow pollutants to accumulate. Furthermore, an overnight inversion will confine pollutants to the lower levels of the atmosphere, and increased residential emissions associated with the holiday will contribute to particle levels. As a result, AQI levels will increase to low-Moderate in most cities.
| Ozone |
32 - Good |
37 - Good |
42 - Good |
| PM25 |
53 - Moderate |
56 - Moderate |
58 - Moderate |
| Ozone |
30 - Good |
33 - Good |
36 - Good |
| PM25 |
39 - Good |
44 - Good |
53 - Moderate |
| Ozone |
22 - Good |
31 - Good |
34 - Good |
| PM25 |
56 - Moderate |
53 - Moderate |
56 - Moderate |
| Ozone |
31 - Good |
35 - Good |
39 - Good |
| PM25 |
39 - Good |
50 - Good |
53 - Moderate |
| Ozone |
23 - Good |
30 - Good |
33 - Good |
| PM25 |
33 - Good |
39 - Good |
50 - Good |
| Ozone |
31 - Good |
36 - Good |
40 - Good |
| PM25 |
44 - Good |
53 - Moderate |
55 - Moderate |
| Ozone |
21 - Good |
31 - Good |
38 - Good |
| PM25 |
55 - Moderate |
53 - Moderate |
56 - Moderate |
| Ozone |
31 - Good |
36 - Good |
39 - Good |
| PM25 |
39 - Good |
50 - Good |
53 - Moderate |