what is the weather like in mid june as I like to visit Harbin,heihe qiqihar?

Oh, during that period of time, the weather conditions of these three places don't have big differences.
According to the weather forecast, the temperature will be 68 F to 77 F. It may have some showers. But the climate is cool and comfortable.
T-shirts, jeans and light jackets are enough for you to take. Have fun!