As of 12:20 PM CDT on July 27, 2026, out of 11 cities in St. Tammany Parish, LA in our database, 6 cities (55%) have a UV Index reading of Extreme, while 5 cities (45%) 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 10.6.
Over the next 24 hours, the highest UV Index reading in St. Tammany Parish, LA is expected to be 11.4 in Lacombe 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 |