Download the UV Index Today app - Get daily UV alerts

UV Index for Marietta, IL

Current Marietta UV Index

0 (Low)

Last Updated 23 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly Marietta UV Index

The hourly Marietta, IL UV Index forecast for Monday, May 11th, 2026.

5 Day Hourly Marietta UV Index Forecast

Last Updated 1 day ago