As of 2:07 PM CDT on June 23, 2026, out of 10 cities in Monona County, IA in our database, 6 cities (60%) have a UV Index reading of High, while 4 cities (40%) have a UV Index reading of Very High. The city with the highest UV Index reading right now is Mapleton, IA with a reading of 8.1.
Over the next 24 hours, the highest UV Index reading in Monona County, IA is expected to be 9.3 in Ute 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 |