The weather has changed rapidly

As you might have noticed, temperatures were 28° on sunday and have quickly fallen to 8° (more or less over night), and due to the wind, it feels like 4°. I'm trying to turn on our heating but it hasn't worked so far (should ask Jenny or Paul as soon as they come back), so I'm sitting in my room with the hair-dryer running (good strategy, Daniele ;-))... As winter here is supposed to be colder than in Switzerland and as I only brought my light fall-jacket, I probably should head off to the Mall of America in order to buy a warm coat, mittens and a scarf soon.