Warren County, NJ: Current UV Index and Hourly Forecast

As of 11:58 PM EDT on September 22, 2025, all 33 cities in Warren County, NJ 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 Warren County, NJ is expected to be 5.7 in Hackettstown between 1:00 PM - 2:00 PM EDT tomorrow.

Search Cities in Warren County, NJ

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Warren County, NJ as of 11:58 PM EDT, September 22, 2025

Current UV Index in Cities in Warren County, NJ

11:58 PM EDT, September 22, 2025