As of 7:12 AM CDT on May 13, 2026, all 16 cities in Franklin County, IL in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is West Frankfort, IL with a reading of 0.3.
Over the next 24 hours, the highest UV Index reading in Franklin County, IL is expected to be 7.9 in West Frankfort 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 |