As of 3:12 PM CDT on August 30, 2025, out of 9 cities in Henderson County, IL in our database, 6 cities (67%) have a UV Index reading of High, while 3 cities (33%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Stronghurst, IL with a reading of 5.7.
Over the next 24 hours, the highest UV Index reading in Henderson County, IL is expected to be 6.9 in Biggsville 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 |