|An icy mix of rain and snow is expected to start the week in Ontario and Quebec. Arctic air follows the storm by Wednesday. (AccuWeather)|
Cold air will filter in behind the storm on Wednesday, changing any precipitation back to snow, before ending. Expect very icy and changeable road conditions from late Monday through Wednesday across the St. Lawrence Valley. Cold air returns for the balance of the week, with clearing skies, and temperatures in the minus teens for lows and around -10C (14F) for highs.