What's the weather like in Suzhou, Hangzhou and Shanghai at the end of April?

I am in Suzhou, and the weather in Suzhou at the end of April will rain according to previous years, but it is not a big problem. It's usually fine in the evening and morning. In general, the highest temperature is about 25 ~ 30 degrees, and the lowest temperature is more than ten degrees. It is enough to wear a shirt and coat on the bed. In order to prevent accidents, it is generally enough to bring a sweater and jeans to the lower body (it should be hot when playing).