As of 12:18 PM EDT on September 1, 2025, out of 12 cities in Hillsdale County, MI in our database, 6 cities (50%) have a UV Index reading of Moderate, while 6 cities (50%) have a UV Index reading of High. The city with the highest UV Index reading right now is Reading, MI with a reading of 5.5.
Over the next 24 hours, the highest UV Index reading in Hillsdale County, MI is expected to be 6.7 in Hillsdale 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 |