As of 3:29 PM CDT on April 26, 2025, out of 7 cities in Union County, SD in our database, 5 cities (71%) have a UV Index reading of High, while 2 cities (29%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Elk Point, SD with a reading of 6.3.
Over the next 24 hours, the highest UV Index reading in Union County, SD is expected to be 6.3 in Elk Point between 3:00 PM - 4:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |