Custer County, ID: Current UV Index and Hourly Forecast

As of 10:11 PM MDT on May 21, 2025, all 5 cities in Custer County, ID 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 Custer County, ID is expected to be 7.7 in Mackay between 2:00 PM - 3:00 PM MDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Custer County, ID as of 10:11 PM MDT, May 21, 2025

Current UV Index in Cities in Custer County, ID

10:11 PM MDT, May 21, 2025