Monday is set to begin with increased cloud cover across most of the island, with those clouds producing isolated rain and even the odd storm.

Temperatures will rise to 19 degrees Celsius inland, and on the west, southwest, and north coasts, 20 degrees Celsius on the southeast and east coasts, and eight degrees Celsius in the mountains.

Overnight, the clouds will remain, with more isolated rain possible.

Temperatures will drop to six degrees Celsius inland, 10 degrees Celsius on the south, north, and east coasts, 13 degrees Celsius on the west coast, and two degrees Celsius in the mountains.

Frost will form in the mountains during the early hours of Tuesday morning, though Tuesday is, like Monday, expected to be a largely cloudy affair, with rain possible in the afternoon.

The weather will be similar on Wednesday and Thursday, with hailstones possible on those two days, though the skies will begin to clear from Thursday afternoon onwards.

Temperatures will rise on Tuesday and remain stable until Thursday.

As of dawn, the depth of snow atop Mount Olympus was eight centimetres.