As of 3:07 PM CDT on April 26, 2025, all 5 cities in Johnson County, NE in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Cook, NE with a reading of 4.3.
Over the next 24 hours, the highest UV Index reading in Johnson County, NE is expected to be 4.3 in Cook between 3:00 PM - 4:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |