As of 2:51 PM EST on November 9, 2026, all 3 cities in Mackinac County, MI in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Naubinway, MI with a reading of 1.2.
Over the next 24 hours, the highest UV Index reading in Mackinac County, MI is expected to be 1.6 in St. Ignace between 12:00 PM - 1:00 PM EST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |