Download the UV Index Today app - Get daily UV alerts

UV Index for Hartland, CA

Current Hartland UV Index

0 (Low)

Last Updated 32 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly Hartland UV Index

The hourly Hartland, CA UV Index forecast for Tuesday, August 11th, 2026.

5 Day Hourly Hartland UV Index Forecast

Last Updated 1 day ago