Speaking after Poland reported a record daily rise in coronavirus infections, Morawiecki told private broadcaster Polsat News that a decision on whether the whole country would become a “red” zone would be made on Thursday.
He added that he wanted the new rules to come into force on Saturday.
Morawiecki also said he wanted classes for older primary school pupils to be held remotely or in “hybrid” form, starting next week.
Poland reported a record daily rise in coronavirus infections on Wednesday, confirming 10,040 new cases, the most since the pandemic hit the country in early March.
Tougher measures to battle COVID-19 were introduced in Poland in the middle of this month, with the number of “red” zones - those with the most severe restrictions - increased to cover almost half the country.
At the beginning of this week, secondary schools and universities in such areas, among them Warsaw, switched to distance learning.
Strict new rules came into effect in the country earlier this month under which everyone is required to wear a face covering when going out in public.
With 96 COVID-19 deaths per million population, Poland remains far less affected by the coronavirus epidemic than many other countries in Europe, according to new statistics.