As of 11:27 AM CDT on May 9, 2026, all 1 cities in Franklin County, TX in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Mount Vernon, TX with a reading of 3.
Over the next 24 hours, the highest UV Index reading in Franklin County, TX is expected to be 6.8 in Mount Vernon between 3:00 PM - 4:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |