No rain is in the forecast for New York City from Sunday the 15th through Saturday the 21st. Daytime highs climb gradually from 51 degrees on the 15th to 64 on Friday the 20th, while nighttime lows stay in the 40s. With big swings between morning, evening and afternoon temperatures, you will want a jacket for the morning commute.
The National Weather Service's New York forecast office expects sunny or mostly sunny skies and no rain in New York City from Sunday the 15th through Saturday the 21st. Daytime highs start at 51 degrees Fahrenheit (about 11 C) on the 15th and rise to 64 degrees (about 18 C) on Friday the 20th. Overnight lows range from 41 to 48 degrees (about 5 to 9 C), leaving a gap of roughly 10 to 16 degrees between morning and evening temperatures and the midday high.
At about 9 a.m. on the 15th, the temperature in Central Park was 43 degrees, and a northwest wind made it feel like 38. Northwest winds will blow at around 14 mph during the day and ease somewhat at night. Monday the 16th will be similarly chilly, with a high of 53 and a low of 42. Temperatures turn milder by midweek, with highs of 58 on Tuesday the 17th, 61 on Wednesday the 18th and 62 on Thursday the 19th.
Even if afternoons feel mild, nighttime temperatures drop into the 40s, so bring a jacket for early-morning commutes and the walk to school. Forecasts can change, so check the latest at the National Weather Service website (weather.gov/okx) before heading out.

