A cold weather alert for Sarnia Lambton continues with forecast lows of at least - 15 C Wednesday night, Thursday and Friday night.
Residents should take precautions by dressing in layers, shielding exposed areas from the wind like the head, neck and face and limiting time spent outdoors.
Lambton Public Health advises local agencies that provide shelter and assistance to the homeless to prepare for an increase in demand.
Overexposure to cold temperatures can be hazardous and can lead to hypothermia.
