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Renewed Heat Surge in Southern France Before Storms Trigger Orange Alerts

Météo-France forecasts temperatures to climb again June 24–25 ahead of thunderstorms that will bring widespread relief

Des touristes bravent la chaleur à Paris le 21 juin 2025.
Un temps respirable s’impose sur les 2/3 du pays, avec quelques passages nuageux au nord avec une ou deux gouttes près de la Manche le matin.
Mercredi est la journée la plus chaude de la semaine avec les 3/4 de la France concernée par les fortes chaleurs.

Overview

  • Isère and Rhône remain under orange alert for heat through June 24 as daytime highs reach the mid-30s in parts of eastern France.
  • A new peak in temperatures is expected on June 25, with thermometers topping 35 °C across much of the country’s southern half.
  • Météo-France has placed 13 departments on orange alert for severe thunderstorms on June 25, warning of heavy rain, hail and gusty winds.
  • This June heatwave is the 50th recorded by Météo-France since 1947 and was about 2.5 °C warmer than comparable events in past decades.
  • Temperatures should drop after the storm front moves through on June 26, ushering in cooler and more variable conditions across France.