As of 11:20 PM CST on December 15, 2025, all 13 cities in Sumner County, KS in our database have a UV Index reading of 0, indicating no radiation from the sun.
Over the next 24 hours, the highest UV Index reading in Sumner County, KS is expected to be 2.2 in Caldwell between 1:00 PM - 2:00 PM CST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |