Grafton County, NH: Current UV Index and Hourly Forecast

As of 5:01 PM EDT on September 18, 2025, all 5 cities in Grafton County, NH in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Lebanon, NH with a reading of 0.9.

Over the next 24 hours, the highest UV Index reading in Grafton County, NH is expected to be 5.6 in Lebanon between 1:00 PM - 2:00 PM EDT tomorrow.

Search Cities in Grafton County, NH

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Grafton County, NH as of 5:01 PM EDT, September 18, 2025

Current UV Index in Cities in Grafton County, NH

5:01 PM EDT, September 18, 2025