On Friday, local rains and sporadic storms are initially expected in the mountains of Macedonia, in Eastern Thessaly and in the Northern Ionian Sea. The phenomena will gradually extend to the rest of the central and northern continents, but in places also to the rest of the continents, the Ionian, Crete and the Northern and Eastern Aegean. There is a chance of hailstorms at noon and in the afternoon, mainly in the northern continental areas. Dust concentrations in the atmosphere will be relatively high.
The temperature will drop mainly in the north and will vary, according to the meteo of the National Observatory of Athens, in Western Macedonia from 16 to 27 degrees Celsius, in the rest of Macedonia and Thrace from 20 to 33, in Thessaly from 20 to 24, in Epirus from 17 to 30, in Sterea from 20 to 33, in the Peloponnese from 17 to 34, in the Ionian Islands from 20 to 28, in the Northern Aegean Islands from 22 to 30, in the Eastern Aegean Islands from 21 to 33, in Cyclades from 20 to 31, in the Dodecanese from 24 to 30 and in Crete from 18 to 33 degrees Celsius.
Winds in the Central and Northern Aegean will initially blow from north directions 2 to 4 Beaufort, but from the afternoon they will change to 3 Beaufort. In the South Aegean the winds will blow from west directions 2 to 4 and locally up to 5 Beaufort. In the Ionian the winds will blow from variable directions up to 3 Beaufort, but from noon they will become northwesterly 2 to 4 and locally up to 5 Beaufort.
Local cloudiness is expected in Attica, which will be increased at noon and in the afternoon and there will be local rains and possibly storms, mainly in the mountainous areas of the prefecture. Winds will blow from variable directions up to 2 Beaufort, but in the afternoon and afternoon they will become temporarily southerly up to 3 Beaufort. Dust concentrations in the atmosphere will be relatively high. The temperature in the center of Athens will range from 25 to 33 degrees Celsius.
In Thessaloniki, clouds are expected that will be dense at times, while rain and storms are expected mainly in the midday and afternoon hours. Winds will blow from southerly directions up to 3 Beaufort. Dust concentrations in the atmosphere will be relatively high. The temperature in the center of Thessaloniki will range from 24 to 29 degrees Celsius.