Mercer County, NJ: Current UV Index and Hourly Forecast

As of 6:19 PM EDT on March 20, 2025, all 17 cities in Mercer County, NJ in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Trenton, NJ with a reading of 0.3.

Over the next 24 hours, the highest UV Index reading in Mercer County, NJ is expected to be 4.9 in Titusville between 1:00 PM - 2:00 PM EDT tomorrow.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Mercer County, NJ as of 6:19 PM EDT, March 20, 2025

Current UV Index in Cities in Mercer County, NJ

6:19 PM EDT, March 20, 2025