As of 12:24 PM CDT on April 13, 2026, all 11 cities in St. Tammany Parish, LA in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Lacombe, LA with a reading of 9.
Over the next 24 hours, the highest UV Index reading in St. Tammany Parish, LA is expected to be 9.8 in Slidell between 1:00 PM - 2:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |