The weather pattern is shifting sharply today (17 June 2026), with rain and thunderstorms expected across much of mainland Greece—including Attica—starting this afternoon. According to meteorologist Thodoris Kolydas, who shared the forecast on social media, intense weather activity is anticipated in Central Greece, Thessaly, and northern Sterea Ellada.
Heightened Alert for Central Regions
Kolydas cautioned that while the rainfall totals may not be extreme overall, the intensity and short timeframe over which they could fall raise the risk of localized problems—including flash flooding and urban runoff. He noted that both the GFS and ECMWF global weather models continue to signal above-average precipitation for the same broad area, reinforcing the need for vigilance in Central Greece, Thessaly, and northern Sterea Ellada.
Attica and Other Areas Affected
The Hellenic National Meteorological Service (EMY) forecasts showers and thunderstorms reaching Attica from midday onward. Isolated rain is also expected in Thessaloniki, Macedonia, and western Greece.
Temperatures and Winds
Temperatures will peak at around 34°C today, with local highs possibly reaching 35°C in parts of inland Central Greece. Winds will generally blow from northerly directions at 3–5 Beaufort, locally reaching 6 Beaufort in the Aegean Sea.
Recent Heat Record
Tuesday, 16 June, saw temperatures exceed 35°C in six locations—most notably in Thebes, Stylida, and Nea Odos Thebes (35.3°C). Nationally, 283 out of 582 active meteorological stations recorded highs above 30°C (~49% of stations), while the national average maximum temperature stood at 29.6°C—slightly above Monday’s reading of 29.4°C and broadly in line with seasonal norms.
Today’s Regional Forecast
In the Ionian Sea, western, central, and northern mainland areas, cloud cover will increase intermittently, with isolated showers, downbursts, and thunderstorms. Elsewhere, skies will remain mostly clear—except during midday and afternoon hours in remaining inland regions, where clouds will briefly thicken and bring scattered rain or thunderstorms, especially over mountainous terrain. Conditions are expected to improve by evening.
For Attica specifically: Skies will stay generally clear through the morning, but increasing cloudiness in the afternoon may bring isolated showers or brief thunderstorms—potentially accompanied by strong gusts.