Hillsborough County, NH: Current UV Index and Hourly Forecast

As of 1:17 PM EDT on October 17, 2025, all 7 cities in Hillsborough County, NH in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Nashua, NH with a reading of 3.2.

Over the next 24 hours, the highest UV Index reading in Hillsborough County, NH is expected to be 3.2 in Nashua 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 Hillsborough County, NH as of 1:17 PM EDT, October 17, 2025

Current UV Index in Cities in Hillsborough County, NH

1:17 PM EDT, October 17, 2025