As of 11:43 AM CDT on September 1, 2026, out of 8 cities in McPherson County, SD in our database, 6 cities (75%) have a UV Index reading of Moderate, while 2 cities (25%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Grassland Colony, SD with a reading of 2.8.
Over the next 24 hours, the highest UV Index reading in McPherson County, SD is expected to be 5.1 in Wetonka between 2:00 PM - 3:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |