Download the UV Index Today app - Get daily UV alerts

UV Index for Cass, IL

Current Cass UV Index

0 (Low)

Last Updated 37 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly Cass UV Index

The hourly Cass, IL UV Index forecast for Sunday, June 21st, 2026.

5 Day Hourly Cass UV Index Forecast

Last Updated 1 day ago