As of 7:05 AM MDT on July 21, 2025, all 7 cities in Cheyenne County, NE in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Sidney, NE with a reading of 0.5.
Over the next 24 hours, the highest UV Index reading in Cheyenne County, NE is expected to be 10.1 in Lorenzo 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 |