As of 2:11 PM CDT on May 2, 2026, out of 483 cities in South Dakota in our database, 415 cities (86%) have a UV Index reading of High, 66 cities (14%) have a UV Index reading of Moderate, while 2 cities (0%) have a UV Index reading of Very High. The city with the highest UV Index reading right now is Lead, SD with a reading of 7.5.
Over the next 24 hours, the highest UV Index reading in South Dakota is expected to be 7.5 in Lead 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 |