In the northwestern region the weather is gradually deteriorating. On September 3, with the approach of the atmospheric front, short-term rains will occur in places, a thunderstorm is possible, in the afternoon +21...+26оС. And already on September 4, with the approach of the Atlantic cyclone, the weather will completely deteriorate: heavy rains, thunderstorms will begin, the wind will increase to 15 m/s, and during the day the temperature will drop to +17...+22°C.