Environment Canada is warning that exposed skin may suffer frostbite in less than 10 minutes this morning, as an Arctic airmass settles in over Manitoba.
With temperatures south of -30 C this morning, even light winds are enough to send the windchill plummetting to between -40 and -45.
Those extreme wind chills are expected to moderate by midday, but very cold temperatures are sticking around this afternoon and overnight.
Today's high will be just -24 C under sunny skies, but the mercury will drop to -30 C again tonight.
Temperatures will moderate slightly tomorrow, with a high of -18 C predicted for the afternoon with cloudy skies in the morning.
However, deep cold returns on Wednesday, with a high that day of -24 C and a low of -29 C.
Thursday could see some flurries, but temperatures will stay in the -20s for the rest of the week.
The normal high for this time of year is -12 C; the normal low is -22 C.