今天进八九！北京傍晚前后风渐弱，下周后期冷空气再来

Group 1 - The weather is characterized by strong north winds, with gusts reaching up to 11 levels in mountainous areas, and a significant drop in temperature expected, with daytime highs around 8°C and nighttime lows around -4°C [4][9] - A yellow wind warning is in effect, advising the public to take precautions against strong winds and potential hazards from falling objects, especially in areas with planned outdoor activities [2][20] - The upcoming days will see a continuation of cold weather, with temperatures in the northern regions dropping significantly, while southern areas will experience increased rainfall, impacting travel during the peak return period of the Spring Festival [20]