Merrimack County, NH: Current UV Index and Hourly Forecast

As of 9:05 AM EDT on April 23, 2025, all 6 cities in Merrimack County, NH in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is South Hooksett, NH with a reading of 2.2.

Over the next 24 hours, the highest UV Index reading in Merrimack County, NH is expected to be 6.6 in South Hooksett between 1:00 PM - 2:00 PM EDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Merrimack County, NH as of 9:05 AM EDT, April 23, 2025

Current UV Index in Cities in Merrimack County, NH

9:05 AM EDT, April 23, 2025