Download the UV Index Today app - Get daily UV alerts

UV Index for DeKalb, IL

Current DeKalb UV Index

0 (Low)

Last Updated 18 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly DeKalb UV Index

The hourly DeKalb, IL UV Index forecast for Friday, May 22nd, 2026.

5 Day Hourly DeKalb UV Index Forecast

Last Updated 1 day ago