On Monday, clouds will continue to develop with brief showers and thunderstorms. There will also be hail. The wind will be weak to moderate from the west-northwest, in Eastern Bulgaria from the north-northeast. Daytime temperatures will drop and the maximum will be mostly between 24 °C and 29 °C, in Sofia - around 24 °C.

Cloudiness along the Bulgarian Black Sea coast will be mostly significant and there will be precipitation and thunder in many places. The maximum temperatures will be from 24 °C-27 °C, and the sea water at 23 °C-24 °C.

It will be mostly sunny over the western half of the Balkan Peninsula. Over the central and eastern parts of the peninsula, the cloud cover will often be significant and there will be brief thunderstorms in many places. It will be 33 °C in Athens, 30 °C in Bucharest, 28 °C in Belgrade and Istanbul.