Sweetwater County, WY: Current UV Index and Hourly Forecast

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As of 9:48 AM MDT on March 13, 2026, all 19 cities in Sweetwater County, WY in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Rock Springs, WY with a reading of 0.7.

Over the next 24 hours, the highest UV Index reading in Sweetwater County, WY is expected to be 5.7 in McKinnon between 1:00 PM - 2:00 PM MDT today.

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Current UV Index in Cities in Sweetwater County, WY

• Arrowhead Springs - 0.7
• Bairoil - 0.7
• Clearview Acres - 0.7
• Eden - 0.6
• Farson - 0.6
• Granger - 0.6
• Green River - 0.7
• James Town - 0.7
• Little America - 0.6
• McKinnon - 0.7
• North Rock Springs - 0.7
• Point of Rocks - 0.7
• Purple Sage - 0.7
• Reliance - 0.7
• Rock Springs - 0.7
• Superior - 0.7
• Table Rock - 0.7
• Wamsutter - 0.7
• Washam - 0.7