As of 1:11 PM CDT on June 7, 2026, out of 1461 cities in Illinois in our database, 891 cities (61%) have a UV Index reading of Very High, 238 cities (16%) have a UV Index reading of Moderate, 169 cities (12%) have a UV Index reading of Low, while 163 cities (11%) have a UV Index reading of High. The city with the highest UV Index reading right now is Anna, IL with a reading of 10.
Over the next 24 hours, the highest UV Index reading in Illinois is expected to be 10 in Anna 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 |