Download the UV Index Today app - Get daily UV alerts

UV Index for Thornton, IA

Current Thornton UV Index

0 (Low)

Last Updated 34 seconds ago

Download the UV Index Today app - Get daily UV alerts

Hourly Thornton UV Index

The hourly Thornton, IA UV Index forecast for Wednesday, July 1st, 2026.

5 Day Hourly Thornton UV Index Forecast

Last Updated 1 day ago