Portland started Saturday under cloudy skies and around 65 degrees at the airport, with a brief chance of light rain on tap around midday. The forecast then flips quickly: a clear Saturday night and a mostly sunny Sunday near 75 set up a sharp climb into the 90s next week.
According to National Weather Service Portland, rain chances rise from late morning through early afternoon, peaking around a 30% chance between 1 and 2 p.m. Southwest winds will run 2 to 8 mph before turning westerly, and the high should top out near 75 degrees.
Saturday Rain Should Be Brief
The wet weather looks more like a passing nuisance than a washout, with clouds breaking into partly sunny skies later Saturday. By Saturday night, skies should be mostly clear and temperatures will fall to about 55 degrees, so anyone staying out late may want more than a T-shirt.
Sunday Starts The Warm-Up
Sunday brings mostly sunny skies and another high near 75, with north-northwest winds and gusts up to 18 mph. That breeze may be most noticeable in exposed spots, but there is no rain in the forecast for the day.
Tuesday Looks Like The Peak
Portland’s warm-up accelerates Monday, when sunshine pushes temperatures near 85, then peaks Tuesday at about 93. Wednesday should remain hot near 91 before temperatures ease to the mid-80s Thursday and Friday, with clear or mostly clear nights throughout.
For weekend plans, Saturday’s best bet is to keep a light layer or rain jacket handy around lunchtime, then take advantage of the drier afternoon. The bigger weather story is the fast turn from cool marine clouds to summer heat, with Tuesday’s 93-degree forecast arriving just a few days after this gray start.
