Download the UV Index Today app - Get daily UV alerts

UV Index for Katy, TX

Current Katy UV Index

0 (Low)

Last Updated 33 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly Katy UV Index

The hourly Katy, TX UV Index forecast for Wednesday, September 16th, 2026.

5 Day Hourly Katy UV Index Forecast

Last Updated 1 day ago