As of 9:20 PM CST on December 31, 2025, all 7 cities in Brule County, SD in our database have a UV Index reading of 0, indicating no radiation from the sun.
Over the next 24 hours, the highest UV Index reading in Brule County, SD is expected to be 1.4 in Chamberlain between 1:00 PM - 2:00 PM CST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |