Oswego: A summer-like weather forecast is taking place all across New York. Oswego has experienced great weather all week, and the future holds more of it. On Friday, Oswego reached a high of 72 degrees fahrenheit, with sunny skies. The weekend outlook shows nothing different, temperatures will stay around 70 during the day, and drop into the comfortable high 40s during the nighttime hours. There is zero percent chance of precipitation in the Oswego area until Wednesday when it will be partly cloudy with a 20 percent chance of precipitation. On Friday around the state, Rochester was the warm spot hitting a high of 75 degrees, and New York City was the surprising cold spot sitting at 63 degrees.