As of 1:06 PM EDT on April 19, 2026, all 8 cities in Hamilton County, IN in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Carmel, IN with a reading of 6.1.
Over the next 24 hours, the highest UV Index reading in Hamilton County, IN is expected to be 6.3 in Carmel between 2:00 PM - 3:00 PM EDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |