As of 2:35 PM CDT on August 17, 2026, out of 10 cities in Butler County, IA in our database, 6 cities (60%) have a UV Index reading of Very High, while 4 cities (40%) have a UV Index reading of High. The city with the highest UV Index reading right now is Aplington, IA with a reading of 7.6.
Over the next 24 hours, the highest UV Index reading in Butler County, IA is expected to be 7.9 in Parkersburg 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 |