Download the UV Index Today app - Get daily UV alerts

UV Index for Lewiston, CA

Current Lewiston UV Index

0 (Low)

Last Updated 39 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly Lewiston UV Index

The hourly Lewiston, CA UV Index forecast for Wednesday, August 12th, 2026.

5 Day Hourly Lewiston UV Index Forecast

Last Updated 2 days ago