Manitobans will need to bundle up, after a frigid blast of arctic air put the entire province in a deep freeze on Thursday.

"It doesn’t matter where you live in Manitoba, that windchill warning has now expanded, including the city of Winnipeg, right up through the Interlake, the whole western side of the province and into the far north," said CBC weather specialist Marilyn Maki.

Maki said Thursday will be the coldest day of the week, with a strong windchill making already frigid temperatures feel even worse.

"The whole western side of the province could see windchill values –40 C to –45 C this morning," said Maki.

The freezing-cold weather forced the closure of a school division in rural Manitoba. Fort la Bosse school division in Virden was forced to shutter its schools and cancel classes due to the weather.

Maki said arctic air combined with wind is what’s causing the extra-cold temperatures.

Cold temperatures will continue into Friday, with a forecast high of –25 C.

Things are set to warm up on the weekend though and should be just a few degrees below seasonal for this time of year, which is –11 C.