Union County, NJ: Current UV Index and Hourly Forecast

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As of 3:25 PM EDT on April 1, 2025, all 19 cities in Union County, NJ in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Plainfield, NJ with a reading of 3.8.

Over the next 24 hours, the highest UV Index reading in Union County, NJ is expected to be 5.5 in Elizabeth between 12:00 PM - 1:00 PM EDT tomorrow.

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Current UV Index in Cities in Union County, NJ

• Connecticut Farms - 3.7
• Cranford - 3.7
• Elizabeth - 3.7
• Fanwood - 3.8
• Garwood - 3.7
• Kean University - 3.7
• Kenilworth - 3.7
• Linden - 3.7
• Mountainside - 3.7
• New Providence - 3.8
• Plainfield - 3.8
• Rahway - 3.7
• Roselle - 3.7
• Roselle Park - 3.7
• Springfield - 3.7
• Summit - 3.7
• Union - 3.7
• Vauxhall - 3.7
• Westfield - 3.7