UV Index Today in Union County, New Jersey (NJ)
Tuesday, April 7, 2026 - 4:48 AM EDT (GMT-4)
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The average maximum UV Index today across 38 locations in Union County, New Jersey (NJ), is 5.7. The highest projected maximum is 5.8 in Plainfield at 1:00 PM EDT, while the lowest projected maximum is 5.7 in Newark at 1:00 PM EDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 5.5. The highest projected maximum is 5.7 in Plainfield at 1:00 PM EDT, and the lowest projected maximum is 5.4 in Newark at 1:00 PM EDT.
8 County Subdivisions in Union County, New Jersey (NJ)
Maximum UV Index Today
30 Places in Union County, New Jersey (NJ)
Maximum UV Index Today