Poland is transitioning from a cool June to a period of significantly warmer weather. A rapid temperature increase is expected in the coming days, bringing the first heatwave of the year. Temperatures are forecast to reach 35 degrees Celsius over the weekend. However, this heat will be accompanied by the return of thunderstorms, predicted to be more intense than recent storms. The shift marks the end of a cooler phase and the beginning of potentially disruptive weather conditions. Authorities are likely to issue advisories regarding heat safety and storm preparedness.