Cloudy skies with scattered rains and thunderstorms are expected in most parts of the Philippines on Saturday, June 28, due to the effects of the southwest monsoon or habagat.br The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA), in its weather forecast, said the southwest monsoon is currently affecting the Visayas, Mindanao, Central Luzon, Southern Luzon, and the western section of Northern Luzon.