Warren County, NJ: Current UV Index and Hourly Forecast

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As of 3:55 PM EDT on March 30, 2026, all 33 cities in Warren County, NJ in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Finesville, NJ with a reading of 4.1.

Over the next 24 hours, the highest UV Index reading in Warren County, NJ is expected to be 5.6 in Finesville between 12:00 PM - 1:00 PM EDT tomorrow.

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Current UV Index in Cities in Warren County, NJ

• Alpha - 4
• Anderson - 4
• Asbury - 4
• Beattystown - 3.9
• Belvidere - 4
• Brainards - 4
• Brass Castle - 4
• Bridgeville - 4
• Broadway - 4
• Brookfield - 4
• Buttzville - 4
• Columbia - 3.8
• Delaware Park - 4
• Finesville - 4.1
• Great Meadows - 3.8
• Hackettstown - 3.9
• Hainesburg - 3.8
• Hutchinson - 4
• Johnsonburg - 3.8
• Lopatcong Overlook - 4
• Marksboro - 3.8
• Mount Hermon - 3.8
• Mountain Lake - 4
• New Village - 4
• Panther Valley - 3.7
• Phillipsburg - 4
• Port Colden - 4
• Port Murray - 4
• Stewartsville - 4
• Upper Pohatcong - 4
• Upper Stewartsville - 4
• Vienna - 4
• Washington - 4