UV Index Today in Mercer County, New Jersey (NJ)

The average maximum UV Index today across 30 locations in Mercer County, New Jersey (NJ), is 5.8. The highest projected maximum is 5.8 in Hamilton at 1:00 PM EDT, while the lowest projected maximum is 5.6 in East Windsor at 1:00 PM EDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 5.9. The highest projected maximum is 5.9 in Hamilton at 1:00 PM EDT, and the lowest projected maximum is 5.7 in Hopewell at 1:00 PM EDT.