As of 3:19 PM PST on January 23, 2025, all 27 cities in Washington County, OR in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Hillsboro, OR with a reading of 0.4.
Over the next 24 hours, the highest UV Index reading in Washington County, OR is expected to be 1.1 in Hillsboro between 12:00 PM - 1:00 PM PST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |