As of 3:27 PM CDT on May 20, 2026, out of 13 cities in Jefferson County, TX in our database, 10 cities (77%) have a UV Index reading of Moderate, while 3 cities (23%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Bevil Oaks, TX with a reading of 3.9.
Over the next 24 hours, the highest UV Index reading in Jefferson County, TX is expected to be 6.1 in Bevil Oaks between 11:00 AM - 12:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |