Summer What is summer like in the Roslyn, Cle Elum area? Summer in Roslyn/Cle Elum = smoke and traffic. Smoke from fires. Traffic from many reasons. Summer in Roslyn – more and more fires and smoke each year! The pic above is the Roslyn Valley one week after the pic on top. I-90 Snoqualmie Pass – Roslyn, Cle Elum area traffic in the summer: Several hours of I-90 Traffic Jam August I-90 Snoqualmie Pass Traffic Jam August I-90 Traffic Jam August Snoqualmie Pass Traffic Jam Typical I-90 2 mph Traffic Crawl July I-90 Construction Traffic July Snoqualmie Pass Traffic I-90 June Tinkham Road I-90 Traffic Jam Stuck in traffic on I-90 July – Denny Creek I-90 Traffic July – Tinkham Road I-90 Traffic July – Easton I-90 Traffic July I-90 Traffic June I-90 Traffic I-90 Bullfrog traffic