As of 6:37 PM EST on January 21, 2026, all 6 cities in Jay County, IN 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 Jay County, IN is expected to be 1.7 in Portland between 1:00 PM - 2:00 PM EST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |