Overview

• Skies clear Monday for the start of fall at 11:19 a.m., with Portland near 76 degrees after Sunday’s light rain.
• Highs are forecast to jump to the mid to upper 80s Tuesday and Wednesday, with official estimates near 86 on Tuesday and 84 on Wednesday.
• Gusty conditions are expected Tuesday in the Columbia River Gorge and along the coast, with sustained 15–20 mph winds and gusts up to about 30 mph.
• A Frost Advisory was in effect early Monday for parts of southern Oregon, including the Klamath Basin and Siskiyou, with temperatures as low as 33 degrees.
• Temperatures trend back toward seasonal mid‑70s late week as the ridge flattens and clouds increase.