As of 12:10 PM CDT on July 3, 2026, all 9 cities in Johnson County, MO in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Holden, MO with a reading of 8.8.
Over the next 24 hours, the highest UV Index reading in Johnson County, MO is expected to be 9.6 in Whiteman AFB between 1:00 PM - 2:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |