Columbia County, WA: Current UV Index and Hourly Forecast

As of 12:43 PM PDT on April 1, 2025, all 2 cities in Columbia County, WA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Dayton, WA with a reading of 3.8.

Over the next 24 hours, the highest UV Index reading in Columbia County, WA is expected to be 4 in Dayton between 1:00 PM - 2:00 PM PDT today.

Search Cities in Columbia County, WA

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Columbia County, WA as of 12:43 PM PDT, April 1, 2025

Current UV Index in Cities in Columbia County, WA

12:43 PM PDT, April 1, 2025