The weather in Greece on Thursday is expected to be a cloudy and rainy day across most regions, with high humidity, warm temperatures, and morning fog persisting. Light to moderate rain will occur throughout the country, while scattered thunderstorms are forecasted to develop first over the Ionian Islands and coastal western mainland Greece, gradually extending to the eastern Aegean and the Dodecanese. Around midday, isolated storms may also form in Macedonia, but by the afternoon, precipitation will begin shifting eastward, leaving improved weather conditions in the west by nightfall.

Temperatures will drop slightly in western Greece, where they will not exceed 14–15°C, while remaining around 16–18°C in other parts of the country. Southern winds in the Ionian will blow at 4–6 Bft, reaching 7 Bft in the morning, before shifting to west-northwesterly winds by night. In the Aegean, southerly winds up to 6 Bft will weaken by evening.

In Athens, cloudy skies and light rain showers are expected until the afternoon. Temperatures will range from 12–16°C, with southerly winds of 5–6 Bft, gradually easing and shifting westerly by night.

Thessaloniki will experience unstable conditions, with morning rain and scattered midday thunderstorms, particularly over Halkidiki. Fog will limit visibility in the early hours. Temperatures will range from 10–15°C, with east-southeast winds at 2–4 Bft.