As of 5:02 PM CDT on May 20, 2026, out of 28 cities in St. Louis County, MN in our database, 17 cities (61%) have a UV Index reading of Low, while 11 cities (39%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Duluth, MN with a reading of 2.5.
Over the next 24 hours, the highest UV Index reading in St. Louis County, MN is expected to be 6.6 in Ely between 1:00 PM - 2:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |