Corfu has been hit especially hard by torrential rainfall that triggered major damage in the northern part of the island.
The first front arrives Thursday night into Friday, bringing rain and storms to the west, central, and northern parts of the country. A second system is due on Sunday.
From Tuesday, temperatures are expected to climb again, reaching unusually high levels for the season.
The storm ended a nearly seven month dry spell in the Greek capital, catching residents and tourists off guard.
Persistent rains and cooler conditions expected in Athens, Thessaloniki into the weekend.
The weather in Greece on Friday will be rainy, with localized storms and snowfall in certain areas, while temperatures are expected to improve.
Greece continues to experience harsh winter conditions, with very low temperatures expected to persist through mid-February.
An emergency severe weather warning is expected to be issued tomorrow by the Greek Meteorological Service
Heavy rains, snow and strong winds may disrupt Christmas travel plans in Greece.
A low-pressure storm, called 'Elena' will hover over Greece on Christmas Eve and Christmas, bringing much needed rain.
Early forecast for period leading up to Christmas Day cites Cold Front, with the possibility of snowfall in the mountainous regions of the country
Rain, snow and cold are expected to set the wintery scene for most of Greece over the weekend as November comes to an end.
The weather will start to improve from the north during the weekend, as rain will gradually shift southward. On Saturday, the eastern mainland and the Aegean will be most affected by the bad weather.