As of 6:44 PM CDT on July 19, 2025, all 8 cities in McPherson County, SD in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Eureka, SD with a reading of 2.2.
Over the next 24 hours, the highest UV Index reading in McPherson County, SD is expected to be 8.7 in Eureka between 2:00 PM - 3:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |