(NAFB.com) – AccuWeather long-range experts say the transition to autumn will bring cooler air and sweater weather to millions of Americans. Others will be dealing with lingering summer heat, tropical storms, hurricanes, wildfires, or a smoky haze obscuring the sky. “Areas in the middle of the country, including Kansas to Wisconsin, will experience very pleasant and calm stretches of fall weather that will be perfect for fairs, festivals, and outdoor events like harvest,” said Long Range Expert Paul Pastelok. “Other areas across the eastern and western U.S. will face some stubborn summer like heat and humidity sticking around this autumn.” AccuWeather long-range experts say the warmest weather, compared to the historical average, will be focused on areas from California to Texas and northward into Oregon and Idaho. The colder air will first arrive and be most pronounced in North Dakota, South Dakota, Minnesota, Iowa, Wisconsin, Illinois, and Michigan. Flurries are possible earlier than normal.