As of 12:08 PM CST on November 18, 2025, all 1 cities in Franklin County, TX in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Mount Vernon, TX with a reading of 2.1.
Over the next 24 hours, the highest UV Index reading in Franklin County, TX is expected to be 3.4 in Mount Vernon between 11:00 AM - 12:00 PM CST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |