Both Thursday and Friday are expected to bring single-digit lows to the city, Kines told the Advance/SILive.com. In anticipation of these conditions, the National Weather Service has issued a Cold Weather Advisory for the five boroughs set to go into effect at midnight and last through 10 a.m. Friday. Such wind chills could result in hypothermia if residents are not careful, according to the weather service. Friday’s high will climb to just 17 degrees Fahrenheit before dropping to a low around 8 degrees Fahrenheit, according to the weather service. Forecast highs from Sunday through Wednesday range from the 20s to lower 30s; daily lows will be in the teens, according to the weather service.