As of 1:42 PM CDT on May 11, 2026, all 10 cities in Traill County, ND in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Hillsboro, ND with a reading of 5.9.
Over the next 24 hours, the highest UV Index reading in Traill County, ND is expected to be 6 in Galesburg between 2:00 PM - 3:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |