Portland’s foggy start has given way to partly cloudy skies. At 9:53 a.m., Portland International Airport reported 53 degrees, with a west-northwest wind at 3 mph. The city is still expected to warm quickly through the day, with a sunny forecast and a high near 73 degrees. The National Weather Service’s Portland observation and forecast lists the current conditions and daytime outlook.
Sunny Skies Push Temperatures Into The 70s
Wednesday’s forecast calls for a high near 73 degrees, sunny skies and calm wind. The afternoon is expected to be the warmest part of the day. The National Weather Service forecast for Portland gives today’s high and wind forecast.
The expected 73-degree high is around 10 degrees above normal for inland valleys, and the National Weather Service identifies Wednesday as the warmest day in this forecast period. Low-level offshore flow and abundant sunshine are driving the warm spell; winds turn onshore later today, with cooler weather expected Thursday through Tuesday. The regional outlook also calls for widespread morning frost Friday and Saturday, particularly relevant to colder valley locations. The Portland office’s forecast discussion outlines the shift.
Wednesday night should remain mostly clear, with a low around 47 degrees. Thursday turns cooler, with increasing clouds and a high near 66; winds are forecast to become northwest around 6 mph in the afternoon. Friday brings a high near 61 and patchy fog before 8 a.m., followed by mostly sunny skies. The National Weather Service’s Portland forecast lists the overnight and daily outlook.
Rain Chances Return This Weekend
Saturday is forecast to be partly sunny, with a high near 63 and a chance of rain Saturday night. Sunday also carries a chance of rain, with partly sunny skies and a high near 63. Monday is expected to be partly sunny, with a high near 63 and a slight chance of rain Monday night; Tuesday is forecast mostly sunny, with a high near 62. The National Weather Service’s Portland forecast provides the updated weekend and early-week outlook.
The rain outlook is focused on a relatively narrow window: the Portland forecast office expects mainly dry weather through early Saturday, with rain chances increasing to 30%–50% mainly from Saturday evening through Sunday morning. That regional timing puts the best chance of showers after Saturday’s daytime forecast, rather than throughout the weekend. The latest area forecast discussion gives the timing and probability range.
The National Weather Service Portland office’s 5:26 a.m. discussion listed no land watches, warnings or advisories for Oregon or Washington; marine advisories are separate. For Wednesday, the fog has given way to partly cloudy conditions at Portland International Airport, and sunny skies are forecast for the afternoon. The office discussion lists the alert status, while the Portland forecast page shows the current conditions and outlook.
