Grant County, WI: Current UV Index and Hourly Forecast

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As of 7:21 PM CST on December 15, 2025, all 22 cities in Grant County, WI 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 Grant County, WI is expected to be 2 in Platteville between 12:00 PM - 1:00 PM CST tomorrow.

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Current UV Index in Cities in Grant County, WI

• Bagley - 0
• Bloomington - 0
• Blue River - 0
• Boscobel - 0
• Cassville - 0
• Cuba City - 0
• Dickeyville - 0
• Fennimore - 0
• Glen Haven - 0
• Hazel Green - 0
• Kieler - 0
• Lancaster - 0
• Livingston - 0
• Montfort - 0
• Mount Hope - 0
• Muscoda - 0
• Patch Grove - 0
• Platteville - 0
• Potosi - 0
• Sandy Hook - 0
• Tennyson - 0
• Woodman - 0