As of 12:10 PM MDT on March 22, 2026, out of 10 cities in Fall River County, SD in our database, 9 cities (90%) have a UV Index reading of Low, while 1 city (10%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Ardmore, SD with a reading of 3.2.
Over the next 24 hours, the highest UV Index reading in Fall River County, SD is expected to be 5.2 in Ardmore 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 |