2. Enter China Meteorological Network into the search engine, and select the official website of China government as shown by the arrow.
3. In China Meteorological Network, slide down until you see the weather forecast query in the online service, and select the weather in the place marked with the red box.
4. If Beijing is selected, the page will jump to the detailed weather forecast and the weather forecast for the next seven days, and then select the arrow to select the option.
5. Under the 40-day option, you can adjust the date according to the date indicated by the arrow to query the historical weather.