As of 6:49 PM MDT on May 23, 2026, all 3 cities in Perkins County, SD in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Bison, SD with a reading of 1.
Over the next 24 hours, the highest UV Index reading in Perkins County, SD is expected to be 7.5 in Prairie City between 1:00 PM - 2:00 PM MDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |