今起三天华西至黄淮阴雨连连，山东南部雨量偏多

Group 1 - The region from Huaxi to Huanghuai is expected to continue experiencing heavy rainfall, with some areas in Sichuan, Shaanxi, and Henan facing significant risks of secondary disasters due to the cumulative rainfall being more than double the normal levels for this time of year [2][3] - The Central Meteorological Administration forecasts that from October 2 to 4, parts of Sichuan, Shaanxi, Henan, and Shandong will see substantial rainfall, with some areas experiencing heavy rain or even torrential rain [2][3] - The average precipitation in Huaxi since the onset of autumn rains has been over 60% higher than the historical average, marking the fourth highest level since 1961 for this period [3] Group 2 - Northern regions, including North China and Northeast China, are experiencing comfortable temperatures suitable for outdoor activities, with maximum temperatures exceeding 25°C [4] - In contrast, southern regions are facing persistent high temperatures, with many areas in the Yangtze River basin and southward reaching maximum temperatures of 30°C or above, necessitating heat prevention measures during the public holiday [4]