江苏周末回暖，跨年夜还有较强冷空气和雨雪？

Core Viewpoint - A cold air mass is currently affecting China, with temperatures expected to rebound after December 26, but another cold front is anticipated to arrive around the New Year, potentially bringing significant temperature drops and precipitation [1][2]. Weather Forecast Summary - From December 25 to December 26, the weather will be mostly clear to partly cloudy, with maximum temperatures around 4°C in the northern regions and 5-6°C in other areas. Minimum temperatures will drop below freezing, reaching -4 to -5°C in the northern regions [2]. - From December 26 to December 27, the weather will transition to mostly cloudy with maximum temperatures rising to around 7°C in the northern regions and 10°C in the southern regions. Minimum temperatures will still be below freezing in many areas [3]. - From December 27 to December 28, the weather will be clear to partly cloudy, with maximum temperatures reaching approximately 12°C in the northern regions and 15°C in the southern regions. Minimum temperatures will hover around 0°C in some areas [4]. Upcoming Weather Events - A significant weather change is expected after December 30, with a large-scale precipitation event forecasted for the central and eastern regions, including potential snowfall in North China and the Yangtze River basin [2]. - The intensity and impact of the upcoming cold air mass from December 31 to January 3 are still uncertain, with predictions indicating a temperature drop of 6-8°C, and localized areas possibly experiencing drops exceeding 10°C [1].