I might have the opportunity to spend 3-5 days riding around a borrowed MTB around the Bellevue and Seattle areas soon. How is the weather around this time of year? Forecasts look great but in reality...? What are points of interest around the area? Looking to put in 30-100 miles per day if possible pending weather/terrain/how long I stay to sight see at any particular spot. Also how are the paths/roads? Is there areas that produce more flat tires then others? I'll be carrying a spare tube just in case but rather spend more time on bike then on repairs. Where I'm from gatorskins and the like are the only way to get around without flats but you still need to carry spare tubes everywhere. Suggestions?