As of 3:13 PM CDT on May 24, 2026, out of 6 cities in Perry County, IL in our database, 4 cities (67%) have a UV Index reading of Moderate, while 2 cities (33%) have a UV Index reading of High. The city with the highest UV Index reading right now is Willisville, IL with a reading of 6.5.
Over the next 24 hours, the highest UV Index reading in Perry County, IL is expected to be 9 in Willisville between 1:00 PM - 2:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |