As of 11:03 AM CDT on May 30, 2026, out of 55 cities in Lake County, IL in our database, 47 cities (85%) have a UV Index reading of High, while 8 cities (15%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Wauconda, IL with a reading of 6.2.
Over the next 24 hours, the highest UV Index reading in Lake County, IL is expected to be 7.7 in Waukegan 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 |