Niobrara County, WY: Current UV Index and Hourly Forecast

As of 3:34 PM MDT on September 18, 2025, all 4 cities in Niobrara County, WY in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Lusk, WY with a reading of 4.5.

Over the next 24 hours, the highest UV Index reading in Niobrara County, WY is expected to be 6.8 in Van Tassell between 1:00 PM - 2:00 PM MDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Niobrara County, WY as of 3:34 PM MDT, September 18, 2025

Current UV Index in Cities in Niobrara County, WY

3:34 PM MDT, September 18, 2025