As of 2:09 AM EDT on May 17, 2025, all 2 cities in Alpena County, MI 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 Alpena County, MI is expected to be 3.9 in Alpena between 3:00 PM - 4:00 PM EDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |