Grant County, WA: Current UV Index and Hourly Forecast

As of 5:02 AM PDT on June 27, 2025, all 25 cities in Grant County, WA in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in Grant County, WA is expected to be 8.1 in Mattawa between 1:00 PM - 2:00 PM PDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Grant County, WA as of 5:02 AM PDT, June 27, 2025

Current UV Index in Cities in Grant County, WA

5:02 AM PDT, June 27, 2025