The weather in Greece is expected to remain sunny until Thursday, with temperatures reaching 17 to 19 degrees Celsius in central and southern areas. However, rains will begin on Friday afternoon from the west, escalating to thunderstorms by night. Saturday will be rainy across the country with cooler temperatures and possible snowfall in the north’s mountainous areas. The weather will improve by Sunday, but a new system bringing more rain and snow is predicted for Monday and Tuesday.