本周我国多地升温明显，昼夜温差普遍超10℃，华北到东北地区南部基本无降水

Group 1 - This week, significant warming is expected across many regions in China, with temperature increases of 6-10°C in the central and eastern parts, and some areas in Northeast and eastern Jiangnan exceeding 12°C [1][2] - By Friday, temperatures will peak, with most of Northeast China rising above 0°C during the day, and the 10°C line reaching southern North China, while the 20°C line will extend to the Yangtze River region, with temperatures about 10°C higher than the same period in previous years [2][4] - The temperature difference between day and night will exceed 10°C in most areas, with some regions north of the Yangtze River experiencing differences of 15°C to 20°C, necessitating attention to warmth during early and late hours [4][5] Group 2 - Precipitation will initially be sparse but will increase later in the week, with overall intensity remaining low; from Monday to Wednesday, scattered rain and snow will occur in regions such as Xinjiang, Heilongjiang, Yunnan, Guizhou, Guangxi, and Hainan, with significant snowfall expected in northern Xinjiang [5][7] - By the weekend, a larger area from Huanghuai to South China will experience considerable rainfall due to the interaction of cold and warm air masses, with potential for widespread moderate rain in Jianghuai to Jiangnan [7][9] - The northern regions, including North China and southern Northeast China, will see little to no precipitation this week, with afternoon humidity levels dropping below 30%, highlighting the need for hydration and safety precautions regarding fire and electricity [9][11]