Grant County, WI: Current UV Index and Hourly Forecast

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As of 1:38 PM CST on January 30, 2026, all 22 cities in Grant County, WI in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Platteville, WI with a reading of 1.6.

Over the next 24 hours, the highest UV Index reading in Grant County, WI is expected to be 2.2 in Platteville between 12:00 PM - 1:00 PM CST tomorrow.

Search Cities in Grant County, WI

Current UV Index in Cities in Grant County, WI

• Bagley - 1.5
• Bloomington - 1.5
• Blue River - 1.4
• Boscobel - 1.5
• Cassville - 1.5
• Cuba City - 1.5
• Dickeyville - 1.5
• Fennimore - 1.6
• Glen Haven - 1.5
• Hazel Green - 1.5
• Kieler - 1.5
• Lancaster - 1.5
• Livingston - 1.5
• Montfort - 1.5
• Mount Hope - 1.6
• Muscoda - 1.4
• Patch Grove - 1.5
• Platteville - 1.6
• Potosi - 1.5
• Sandy Hook - 1.5
• Tennyson - 1.5
• Woodman - 1.6