The situation is worsening. This Saturday, June 27, 2026, it is no longer a mere yellow alert but an orange thunderstorm alert that Météo-France has issued for Paris and all the Île-de-France departments. One level up, and that changes everything: the phenomena expected this evening could be dangerous, in a region already fatigued by a week of historic heat.
Météo-France on Saturday, June 27, issued an orange alert for thunderstorms across 23 departments, including Paris, Seine-et-Marne (77), Yvelines (78), Essonne (91), Hauts-de-Seine (92), Seine-Saint-Denis (93), Val-de-Marne (94) and Val-d'Oise (95). The warning also extends to neighboring departments such as Oise, Somme, Aisne, Ardennes, Aube, and Loiret.
Starting in the morning, thunderstorms are moving across the Pays de la Loire and Normandy. In the afternoon, new storms develop toward the eastern part of Brittany. By the evening, strong storms are expected to reach Île-de-France and push north to Hauts-de-France and Champagne-Ardenne. The risk is therefore mainly in the evening in the Paris region. The stormy zone will stay active as it expands toward Île-de-France, with a likelihood of strong gusts and hail.
Orange alert remains a serious warning. Météo-France says the hottest air mass is gradually shifting eastward, while cooler air starts to push into the western and northwestern regions. This temperature contrast will fuel the development of thunderstorms, some of them potentially violent, with hail and strong gusts.
Flooding of basements and other low-lying areas is to be feared, as well as flash floods along streams and small rivers. Lightweight housing and temporary installations could be put in real danger. Forested massifs may locally suffer heavy damage and become highly vulnerable to numerous lightning strikes.
Practically speaking: avoid evening walks in the woods or along the water, bring indoor the outdoor furniture, and don't hit the road unless it’s absolutely necessary. To track developments in real time, consult the Météo-France vigilance map directly.
These storms, long feared by forecasters across the northern half of the country, are expected to signal the end of the heatwave. The exceptional heatwave gripping the region for a week, with temperatures hovering around 40°C, is thus ready to give way. Wednesday, June 24, and Thursday, June 25, were the hottest days ever recorded in France, marking for the first time an average of 30°C over 24 hours. This stormy Saturday evening could therefore mark a real turning point, even if caution remains: the heat won’t vanish in a matter of hours. Île-de-France remains under red alert this Sunday. The thunderstorm alert, for its part, is now yellow for Sunday.
For anyone looking to stay cool for the day while the sky calms down, this is the perfect moment for a museum or exhibition visit in Paris, or to take advantage of the city’s air-conditioned venues.
Dates and Opening Time
From June 27, 2026 to June 28, 2026
Location
Paris and the Île-de-France region
Paris
75 Paris
