As of 4:35 PM PDT on September 2, 2025, out of 19 cities in Whatcom County, WA in our database, 15 cities (79%) have a UV Index reading of Moderate, while 4 cities (21%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Point Roberts, WA with a reading of 2.9.
Over the next 24 hours, the highest UV Index reading in Whatcom County, WA is expected to be 5.7 in Maple Falls between 1:00 PM - 2:00 PM PDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |