This episode of extreme heat will increase again Friday, with maximum temperatures provided locally above 40°C, close to the record highs of July 2019.
The weather this Thursday will be marked by a heat spike is very intense. Six departments are in vigilance orange for heat, Ardèche (07), Drôme (26), Isère (38), Rhône (69), Savoie (73) and Haute-Savoie (74).
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The temperatures will be high the next night in the valley of the Rhone and lyon agglomeration,usually higher at 20-22°C. This Thursday, temperatures are rising, with temperatures expected on the afternoon of 34°C to à38°C in general, locally 39°C. The following night will be hot, even warmer than the previous.
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Close record of July 2019
This episode of extreme heat will increase again Friday, with maximum temperatures provided locally above 40°C, close to the record reached in July 2019. Temperatures are expected to remain very high during the day of Saturday and in the night from Saturday to Sunday, before the beginning of a refresh during the day of Sunday. Otherwise the day looks equally well in a sunny and very hot.
In the mountains to the south, the weather becomes stormy from the mid-day. On the Massif central and the Alps, in the afternoon thunderstorms, and sometimes strong trigger with a risk of hail and good gusts of wind. The risk is less on the Pyrenees and the corsican mountains, but the showers are not excluded.
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On the rest of the country the sky is most often blue, with a very fast heat. A wind from north-east low to moderate rises on the coast of the English Channel in the afternoon, a slight wind of Autan in Occitania.
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The minimum temperatures range from 9 to 15 degrees on the north half, 15 to 23 to the south. The maximum increase, going from 24 to 30 degrees in the departments bordering the English Channel, 30 to 36 degrees on the rest of the northern half, in Corsica and the coast of the Mediterranean, and 34 to 40 degrees of the Alps to the South-West.