As of 12:25 PM CDT on September 5, 2026, out of 13 cities in Sumner County, KS in our database, 7 cities (54%) have a UV Index reading of Very High, while 6 cities (46%) have a UV Index reading of High. The city with the highest UV Index reading right now is Geuda Springs, KS with a reading of 7.6.
Over the next 24 hours, the highest UV Index reading in Sumner County, KS is expected to be 8.9 in Caldwell between 2:00 PM - 3:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |