 This update brought to you by Diamond Lake Resort. Summertime is lake time. Diamond Lake Resort is your place to play. Fish, relax, dine, tell stories around the fire, sleep in. Summer your way at Diamond Lake Resort. Go to diamondlake.net or Facebook. Mybasin.com. Whether your Sunday high is going to be 100 with clear skies, temperatures at or near triple digits almost all week, things are going to cool down a little bit into the lower 90s next weekend.