The extreme cold is giving some kids in the Horizon School Division an extra day off for the weekend.
Buses were cancelled on Friday morning for Wakaw, Wadena, Kelvington, and Rose Valley.
The Prairie Spirit School Division cancelled all routes, which includes Colonsay and Clavet schools.
In the North East School Division, routes were nixed for Naicam.
For Humboldt's schools, bus service was uninterrupted.
Friday's early morning temperature hovered around -30, with the wind chill knocking that down to -40. The extreme cold is expected to break up towards the end of the weekend.