As of 10:28 AM CDT on May 22, 2026, out of 483 cities in South Dakota in our database, 462 cities (96%) have a UV Index reading of Low, while 21 cities (4%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Lead, SD with a reading of 2.7.
Over the next 24 hours, the highest UV Index reading in South Dakota is expected to be 7.6 in Hot Springs between 1:00 PM - 2:00 PM MDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |