Download the UV Index Today app - Get daily UV alerts

UV Index for Granton, WI

Current Granton UV Index

0 (Low)

Last Updated 32 seconds ago

Download the UV Index Today app - Get daily UV alerts

Hourly Granton UV Index

The hourly Granton, WI UV Index forecast for Monday, April 20th, 2026.

5 Day Hourly Granton UV Index Forecast

Last Updated 1 day ago