"By the end of the working week, the temperature will already be about 25 degrees, and it will be real summer," - quoted by TASS Vilfand.
According to him, the warming in the center of Russia will be gradual.
He noted that starting from June 1, the air temperature will rise by 1-2 ° C every day.
Earlier, Roman Vilfand said that at the end of May, the season of white nights began in St. Petersburg.