As of 2:40 PM PDT on May 12, 2025, out of 3 cities in Gilliam County, OR in our database, 2 cities (67%) have a UV Index reading of Low, while 1 city (33%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Arlington, OR with a reading of 4.3.
Over the next 24 hours, the highest UV Index reading in Gilliam County, OR is expected to be 4.3 in Arlington between 2:00 PM - 3:00 PM PDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |