Download the UV Index Today app - Get daily UV alerts

UV Index for Castleton, MI

Current Castleton UV Index

0 (Low)

Last Updated 13 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly Castleton UV Index

The hourly Castleton, MI UV Index forecast for Monday, July 6th, 2026.

5 Day Hourly Castleton UV Index Forecast

Last Updated 1 day ago