Grant County, WI: Current UV Index and Hourly Forecast

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As of 3:26 PM CDT on August 1, 2026, all 22 cities in Grant County, WI in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Boscobel, WI with a reading of 5.2.

Over the next 24 hours, the highest UV Index reading in Grant County, WI is expected to be 8.3 in Cuba City between 1:00 PM - 2:00 PM CDT tomorrow.

Search Cities in Grant County, WI

Current UV Index in Cities in Grant County, WI

• Bagley - 4.9
• Bloomington - 4.9
• Blue River - 5.1
• Boscobel - 5.2
• Cassville - 4.9
• Cuba City - 2.5
• Dickeyville - 2.5
• Fennimore - 4.8
• Glen Haven - 4.9
• Hazel Green - 2.5
• Kieler - 2.5
• Lancaster - 3.8
• Livingston - 3.8
• Montfort - 3.8
• Mount Hope - 4.8
• Muscoda - 5.1
• Patch Grove - 4.9
• Platteville - 3
• Potosi - 3.8
• Sandy Hook - 2.5
• Tennyson - 3.8
• Woodman - 4.8