Arctic air coming across from the prairies are to blame for this morning's cold temperatures. Environment Canada's Geoff Coulson says normal temperatures for this time of year are highs of -3 and lows of -12 but it feels a lot cooler than that around the region. Coulson says there is good news in the forecast as a developing storm system across the prairies will bring a warm front to the region producing highs of 5 and 6 for Saturday and Sunday.