As of 1:34 PM MDT on September 1, 2026, out of 3 cities in Perkins County, SD in our database, 2 cities (67%) have a UV Index reading of Moderate, while 1 city (33%) have a UV Index reading of High. The city with the highest UV Index reading right now is Lemmon, SD with a reading of 5.8.
Over the next 24 hours, the highest UV Index reading in Perkins County, SD is expected to be 6.3 in Lemmon between 12:00 PM - 1:00 PM MDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |