As of 4:25 PM CDT on June 10, 2026, all 12 cities in Cerro Gordo County, IA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Ventura, IA with a reading of 5.4.
Over the next 24 hours, the highest UV Index reading in Cerro Gordo County, IA is expected to be 5.6 in Mason City between 11:00 AM - 12:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |