The Windsor Essex County Health Unit has issued a cold weather alert for Windsor-Essex County.
It will be in effect until Saturday, when daytime temperatures are predicted to warm up.
Environment Canada says Windsor is going to be a lot colder than usual this week.
The daytime high is expected to be between -10 C and -13 C.
Normally, it should be around -2 C this time of year.
"It is another shot of arctic air coming down from Canada's far North," said Geoff Coulson, a warning preparedness meteorologist for Environment Canada. "We're seeing a flow from the North impacting not just the southwestern Ontario area but right up through northern Ontario, the eastern prairies and the far North, also."
The forecast calls for temperatures to fall to -10 C under mainly cloudy skies Monday. There's a 30 per cent chance of flurries. The wind is predicted to gust to 40 km/hr.
Overnight, the low is to be -18 C with a wind chill of -27 C.
Coulson says more seasonal temperatures should roll into the region this weekend.
The Windsor Essex County Health Unit says the most common health problems associated with exposure to cold weather are hypothermia and frostbite.
Hypothermia occurs when the body loses heat faster than it is produced.
Warning signs of hypothermia in adults include:
- Memory loss.
- Slurred speech.
In infants, bright red cold skin, and very low energy are the signs of hypothermia.
Warning signs of frostbite include:
- White or grayish-yellow areas on the skin.
- Numbness, and skin that feels unusually firm or waxy.
Coulson says so fair this is an unusual winter for Windsor.
"This particular winter of 2013-2014 definitely looks like it's going to go in the record books as colder than normal," Coulson said. "Even with a bit of the January thaw that we experienced this month, with the very cold temperatures at the start of the month and with these cold temperatures we're expecting for the rest of the month ... January is going in the record book."