We will be based in Wengen and plan to do some short day hikes in the area. Possible locations: Mannlichen, Kleine Scheidegg, First, Grindelwald, etc... Also a trottibike trip in this area. We plan to bring both long pants as well as shorts. For tops- short sleeves and light sweatshirts. We also all have waterproof rain jackets. Will this be adequate clothing for these activities, or will we need gloves and heavier jackets? Also, can anyone tell me the coldest temperatures in Fahrenheit that we are likely to encounter during the first week of July?