June Weather in Poland - What to wear?

I'm traveling to Warsaw, Krakow and Zakopane next month. From what I see it's partly cloudy with rain in all three places. I expect Zakopane to be more cold and rainy and will be spending time hiking in the mountains. Any suggestions on weather and types of clothes to bring for my travels? Sounds like it won't be too cold in Warsaw and Krakow, but I'm used to Alaska where it can get -30 C in the winter... Hoping for comfortable temps with rainshowers. Thanks.

you can expect anything between 18-35 oC.rain or sun.generaly it's warm and sunny but the weather is different each year.