Warren County, NJ: Current UV Index and Hourly Forecast

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As of 4:31 PM EDT on June 26, 2025, out of 33 cities in Warren County, NJ in our database, 21 cities (64%) have a UV Index reading of Moderate, 6 cities (18%) have a UV Index reading of Low, while 6 cities (18%) have a UV Index reading of High. The city with the highest UV Index reading right now is Phillipsburg, NJ with a reading of 5.5.

Over the next 24 hours, the highest UV Index reading in Warren County, NJ is expected to be 9.5 in Panther Valley between 1:00 PM - 2:00 PM EDT tomorrow.

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Current UV Index in Cities in Warren County, NJ

• Alpha - 5.5
• Anderson - 4.2
• Asbury - 4.2
• Beattystown - 4.8
• Belvidere - 4.2
• Brainards - 5.5
• Brass Castle - 4.2
• Bridgeville - 4.2
• Broadway - 4.2
• Brookfield - 4.2
• Buttzville - 4.2
• Columbia - 2.2
• Delaware Park - 5.5
• Finesville - 5.2
• Great Meadows - 2.2
• Hackettstown - 4.8
• Hainesburg - 2.2
• Hutchinson - 4.2
• Johnsonburg - 2.2
• Lopatcong Overlook - 5.5
• Marksboro - 2.2
• Mount Hermon - 2.2
• Mountain Lake - 4.2
• New Village - 4.2
• Panther Valley - 4
• Phillipsburg - 5.5
• Port Colden - 4.2
• Port Murray - 4.2
• Stewartsville - 4.2
• Upper Pohatcong - 5.5
• Upper Stewartsville - 4.2
• Vienna - 4.2
• Washington - 4.2