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The final day of 2025 remains cold and dry through most of the daylight hours as strong winds gradually ease. Skies turn increasingly cloudy late in the day, with snow developing during the evening and overnight hours. Accumulations appear minor in Waltham, but slick spots are possible by late evening. 
● High: Near 29°F 
● Low: Around 24°F 
● Wind: Southwest 7 to 10 mph, gusts up to 20 mph 
● Sky: Partly sunny early, becoming cloudy 
● Chance of snow: 60 percent late 
● Snow accumulation: Less than 1 inch possible