Montrealers should prepare for sun and rain this weekend. A gloomy Friday with an overnight low of 2 degrees Celsius is expected to lead to a sunny Saturday. The mercury could reach a high of 9 degrees Celsius on Saturday afternoon, as light clouds roll in later in the day. Clear skies and a low of -1 degree Celsius are forecast for Saturday night. On Sunday, a mix of sun and clouds is expected to start the day. The daytime temperature could also hit a double-digit high of 11 degrees Celsius. However, those in the Montreal area may see some rain on Sunday evening. Up to 17 millimetres could hit the island and its surrounding areas, as the mercury moves to 6 degrees Celsius as the nighttime low. More rain is then forecast to start the week.