Nantucket County, MA: Current UV Index and Hourly Forecast

As of 8:08 PM EDT on September 15, 2025, all 2 cities in Nantucket County, MA in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in Nantucket County, MA is expected to be 5.5 in Madaket between 12:00 PM - 1:00 PM EDT tomorrow.

Search Cities in Nantucket County, MA

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Nantucket County, MA as of 8:08 PM EDT, September 15, 2025

Current UV Index in Cities in Nantucket County, MA

8:08 PM EDT, September 15, 2025