As of 2:03 PM CDT on April 1, 2025, out of 16 cities in Knox County, IL in our database, 14 cities (88%) have a UV Index reading of Low, while 2 cities (13%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Williamsfield, IL with a reading of 2.6.
Over the next 24 hours, the highest UV Index reading in Knox County, IL is expected to be 2.7 in Maquon 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 |