- Temperatures are tanking tonight as a blast of Arctic air moves into Michiana. Lows down into the single digits but wind chills will be well below zero. We only get up to around 12 degrees both Sunday and Monday, with wind chills around 15 below zero, perhaps colder on Monday morning. Lake effect snow will affect western parts of Michiana tomorrow. Meteorologist Cindi Clawson has the details in her Saturday evening forecast.