For residents of Barrie, the fall season started off with a chilly morning, feeling as cold as 6 C early Tuesday. According to Environment and Climate Change Canada (ECCC), it will be a breezy first day for the new season, as a northeasterly wind gusting at speeds up to 40 km/h is expected for the day. Due to a mix of sun and clouds predicted causing partly cloudy conditions for the day, the UV index is five or moderate, ECCC says. The daytime high for Barrie is an estimated 16 C and the overall low is expected to get down to 4 C.