Download the UV Index Today app - Get daily UV alerts

UV Index for Merrimac, MA

Current Merrimac UV Index

0 (Low)

Last Updated 24 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly Merrimac UV Index

The hourly Merrimac, MA UV Index forecast for Tuesday, May 12th, 2026.

5 Day Hourly Merrimac UV Index Forecast

Last Updated 1 day ago