As of 4:33 PM EDT on June 10, 2026, all 11 cities in Ionia County, MI in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Ionia, MI with a reading of 6.9.
Over the next 24 hours, the highest UV Index reading in Ionia County, MI is expected to be 8.4 in Ionia between 2:00 PM - 3:00 PM EDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |