No problem.
About weather report, you can also you this link from Slovenian weather agency.
http://vreme.arso.gov.si/napoved/Logarska%20dolina/graf Unfortunately, you can't search for mountain summits, but you can guess what the weather will be based on places/valleys below mountains.
Other than that I would actually recommend that you sleep outside if you can because you can make your whole route in two even parts (and it's totally legal to do so on Kamnik-Savinja Alps). Also, keep in mind that there won't be any water sources once you get to a certain height. On your whole route it'll only be at and above Rinka waterfall and probably near Češka koča. Otherwise you'll have to buy it at huts.