As of 2:42 PM CDT on August 30, 2025, out of 5 cities in Osceola County, IA in our database, 3 cities (60%) have a UV Index reading of High, while 2 cities (40%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Sibley, IA with a reading of 6.3.
Over the next 24 hours, the highest UV Index reading in Osceola County, IA is expected to be 6.3 in Sibley between 2:00 PM - 3:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |