Warren County, NJ: Current UV Index and Hourly Forecast

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As of 2:25 PM EDT on July 29, 2026, out of 33 cities in Warren County, NJ in our database, 30 cities (91%) have a UV Index reading of Moderate, while 3 cities (9%) have a UV Index reading of High. The city with the highest UV Index reading right now is Finesville, NJ with a reading of 5.8.

Over the next 24 hours, the highest UV Index reading in Warren County, NJ is expected to be 7 in Washington between 1:00 PM - 2:00 PM EDT tomorrow.

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Current UV Index in Cities in Warren County, NJ

• Alpha - 5.2
• Anderson - 4.3
• Asbury - 4.3
• Beattystown - 5.5
• Belvidere - 4.3
• Brainards - 5.2
• Brass Castle - 4.3
• Bridgeville - 4.3
• Broadway - 4.3
• Brookfield - 4.3
• Buttzville - 4.3
• Columbia - 5.3
• Delaware Park - 5.2
• Finesville - 5.8
• Great Meadows - 5.3
• Hackettstown - 5.5
• Hainesburg - 5.3
• Hutchinson - 4.3
• Johnsonburg - 5.3
• Lopatcong Overlook - 5.2
• Marksboro - 5.3
• Mount Hermon - 5.3
• Mountain Lake - 4.3
• New Village - 4.3
• Panther Valley - 5.3
• Phillipsburg - 5.2
• Port Colden - 4.3
• Port Murray - 4.3
• Stewartsville - 4.3
• Upper Pohatcong - 5.2
• Upper Stewartsville - 4.3
• Vienna - 4.3
• Washington - 4.3