The new measures will include a nighttime curfew and travel restrictions between the worst-hit regions, in an effort to contain a second wave of the virus.
The situation is deteriorating," Conte said, adding that due to the increasing number of coronavirus cases and hospitalizations, it is "necessary to adopt before Wednesday a new body of restrictive measures."
The restrictions will be included in a government decree expected to be issued by the end of the week.
Conte also said the country would be divided into three areas depending on the level of contagion and the number of hospitalizations, with the most affected areas facing tighter restrictions. Distance learning will also become compulsory for high schools.
We must intervene with more stringent measures," Conte told the Italian Chamber of Deputies, adding, "There is a high possibility that 15 out of 20 regions will exceed the critical level of ICU within a month."
In a tweet on Monday, Pope Francis said: "Today we pray for all the #FaithfulDeparted and especially for the victims of the #Coronavirus: for those who have died alone, without the caress of their loved ones; and for those who have given their lives serving the sick."