For residents of Barrie, Monday morning began with a light rain and dark cloud cover. According to Environment and Climate Change Canada (ECCC), residents can expect a chance of thunderstorms on Monday as well. Barrie’s daytime high is expected to 23 C, with a humidex value of 29, ECCC says. Chances of precipitation remain at 80 per cent until 7 p.m., during which time ECCC predicts a risk of thunderstorms. During the day, ECCC says Barrie is expected to receive 20 to 30 millimetres of rain. As the evening begins, precipitation chances decrease to 20 per cent as Barrie approaches its daytime low of 19 C.