As of 1:50 PM CDT on April 11, 2026, all 13 cities in St. James Parish, LA in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is South Vacherie, LA with a reading of 9.6.
Over the next 24 hours, the highest UV Index reading in St. James Parish, LA is expected to be 9.7 in South Vacherie between 12:00 PM - 1:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |