The forecast was lowered from 0.5% growth in the previous WEO published in April.
Hungary's GDP contracted 1.7% in the first half of the year, data from the Central Statistical Office (KSH) show, but the government augurs a turnaround from Q3.
The fresh WEO projects Czechia's economy will edge up 0.2% this year, while Poland's expands 0.6% and Slovakia's grows 1.3%.
The IMF puts the average annual inflation in Hungary at 17.7% this year.
Hungary's current account deficit is set to reach the equivalent of 0.9% of GDP.