As of 11:04 AM CDT on October 20, 2026, all 9 cities in Martin County, MN in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Fairmont, MN with a reading of 1.9.
Over the next 24 hours, the highest UV Index reading in Martin County, MN is expected to be 3.4 in Ceylon between 1:00 PM - 2:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |