Heat wave will blanket much of Oregon and Southwest WashingtonBy Alejandro Figueroa (OPB)Sept. 5, 2024 11:25 p.m. Updated: Sept. 6, 2024 4:55 p.m.High temperatures in the triple digits are expected for much of the Willamette Valley and the southwestern part of the Evergreen State.📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up