Seattle/ Weather & Environment

Seattle Shakes Off Morning Gloom, Soaks Up Sun Before Weekend Cooldown

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Published on August 17, 2026
Seattle Shakes Off Morning Gloom, Soaks Up Sun Before Weekend CooldownSource: Google Street View

Seattle is starting Monday with clear skies and temperatures around 57 degrees at Boeing Field, but a marine layer may slide back over the city around sunrise. The payoff comes quickly: clouds should thin by late morning, with mostly sunny skies and a high near 78.

Morning Clouds Give Way To Sun

The National Weather Service says Monday’s clouds should clear relatively quickly, leaving a dry afternoon with light north-northwest winds of 1 to 5 mph. By late afternoon, readings climb through the 70s, making the warmest part of the day a good bet for parks, patios and waterfront walks.

Comfortable Nights Keep The Week Mild

Monday night will be partly cloudy with a low near 59, and Tuesday will look much the same: partly sunny, dry and near 78. Wednesday eases back to 76 under mostly sunny skies, while Thursday currently appears to be the warmest day at about 79.

Cooler Weekend Brings A Small Rain Chance

Dry weather should hold through Friday, when Seattle reaches about 77 under mostly sunny skies. The pattern turns cooler late Friday night into Saturday, with a slight chance of light rain after 5 a.m. Saturday, a high near 72 and partly sunny skies after the morning shower window.

Sunday stays on the cooler side, with a high near 72 and partly sunny skies. No hazardous weather alerts are listed for Seattle, but anyone heading onto open water should still check the marine forecast before leaving shore.