As of 2:05 PM CDT on July 15, 2025, out of 11 cities in Marshall County, MN in our database, 6 cities (55%) have a UV Index reading of Low, while 5 cities (45%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Oslo, MN with a reading of 4.8.
Over the next 24 hours, the highest UV Index reading in Marshall County, MN is expected to be 7.3 in Grygla 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 |