Download the UV Index Today app - Get daily UV alerts

UV Index for Merrimack, NH

Current Merrimack UV Index

0 (Low)

Last Updated 35 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly Merrimack UV Index

The hourly Merrimack, NH UV Index forecast for Wednesday, April 8th, 2026.

5 Day Hourly Merrimack UV Index Forecast

Last Updated 1 day ago