As of 1:41 PM EST on January 31, 2026, all 8 cities in Penobscot County, ME in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Bangor, ME with a reading of 1.1.
Over the next 24 hours, the highest UV Index reading in Penobscot County, ME is expected to be 1.2 in Mattawamkeag between 11:00 AM - 12:00 PM EST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |