As of 5:40 PM CDT on June 16, 2026, all 21 cities in Dubuque County, IA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Dubuque, IA with a reading of 2.9.
Over the next 24 hours, the highest UV Index reading in Dubuque County, IA is expected to be 5.1 in Balltown between 2:00 PM - 3:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |