Sauk County, WI: Current UV Index and Hourly Forecast

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As of 1:02 PM CST on January 20, 2026, all 16 cities in Sauk County, WI in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Prairie du Sac, WI with a reading of 1.3.

Over the next 24 hours, the highest UV Index reading in Sauk County, WI is expected to be 1.5 in Prairie du Sac between 12:00 PM - 1:00 PM CST tomorrow.

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Current UV Index in Cities in Sauk County, WI

• Baraboo - 1.2
• Bluffview - 1.3
• Ironton - 1.2
• La Valle - 1.2
• Lake Delton - 1.2
• Lime Ridge - 1.2
• Loganville - 1.2
• Merrimac - 1.3
• North Freedom - 1.2
• Plain - 1.3
• Prairie du Sac - 1.3
• Reedsburg - 1.2
• Rock Springs - 1.2
• Sauk City - 1.3
• Spring Green - 1.3
• West Baraboo - 1.2