Climate

Cloudbursts in the north and record heat in the centre and south: weather alert in Italy

Cloudbursts and hailstorms are expected in the North, while record temperatures over 40°C will be reached in the Centre and South.

4 June 2025

Turisti e cittadini in piazza Duomo si riparano dalla pioggia con gli ombrelli, Milano, 28 agosto 2023 (foto d’archivio). Ansa/Matteo Corner

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Thunderstorm supercells ready to strike, risk of hail and cloudbursts in some northern regions but African heat remains in the centre and south.

This is the announcement of Lorenzo Tedici, meteorologist of the www.iLMeteo.it website, confirming that, from Wednesday afternoon, the arrival of an unstable French front is expected: a disturbance that will break into Italy causing a sudden worsening of the weather conditions over some of our regions.

The hardest hit areas will be northern Piedmont, northern Lombardy and inland areas of Liguria and in particular the provinces of Verbania-Cusio-Ossola, Varese and Como will suffer torrential rains.

According to Tedici, the total rainfall, expected between Wednesday afternoon and the early hours of Thursday, amounts to around 100/150 litres per square metre, which is the equivalent of the total rainfall that normally falls in some areas during the entire month of June.

At the same time, especially on the plains between Vercelli, Novara and Milan areas, some 'super thunderstorm supercells' with the possibility of large hail and strong winds could develop.

Finally, by the weekend we will touch the first 40°C in the shade, while tropical nights have already arrived even in the North, i.e. where the minimum temperature is above 20°C.

In detail:
- Wednesday 4. In the North: strong thunderstorms in the Northwest Alps, local on the respective plains. In the Centre: cloudy and warm. In the South: sunny and warm:
- Thursday 5. In the North: thunderstorms possible over many areas. In the Centre: partly cloudy skies. In the South: sunny and warmer.
- Friday 6. In the North: sunny and warm. In the Centre: sunny and warm. In the South: sunny and very hot. Trend: further strengthening of the African anticyclone; very hot weather all over Italy with the first 40°C in the South.