Download the UV Index Today app - Get daily UV alerts

UV Index for Lannon, WI

Current Lannon UV Index

0 (Low)

Last Updated 42 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly Lannon UV Index

The hourly Lannon, WI UV Index forecast for Wednesday, June 3rd, 2026.

5 Day Hourly Lannon UV Index Forecast

Last Updated 1 day ago