Washington – Cold air presses into Puget Sound this morning, leaving windshields frosted and sidewalks stiff underfoot. The day begins calm, but winter is quietly setting the tone for the final week of 2025 as holiday travel builds.
According to the National Weather Service, Seattle starts Monday mostly cloudy with temperatures near 36 degrees early and highs around 44. Winds remain light, allowing cold pockets to linger through the morning commute. While skies stay dry, any damp spots could refreeze before midday.
Conditions stay similar Tuesday, with another chilly start and afternoon highs in the mid-40s. To be fair, it feels stable for now. Still, the pattern favors cold nights, and that raises localized black ice concerns on untreated roads, bridges, and ramps. Drivers along I-5, I-90, and Highway 99 should stay alert during early travel hours.
By Wednesday and New Year’s Eve, clouds thicken again. Temperatures remain seasonably cool, topping out near 47 degrees. While rain holds off during the day, moisture increases late, signaling a shift just as celebrations begin. Plan ahead if you’ll be out late, and expect slower travel after sunset.
Rain chances return Thursday, New Year’s Day, as 2026 begins. Wet pavement combines with lingering cold air, creating slick conditions during morning drives and return trips. While Seattle avoids the snow and blizzards slamming the Midwest and Great Lakes, winter still shows its hand here through cold starts and cautious travel.
More updates may follow as rain chances increase late week. Heading out early today or traveling for New Year’s? Tell us how conditions feel in your neighborhood.
Five Day Outlook for Seattle, Washington
Monday: Mostly cloudy, high near 44
Monday Night: Mostly cloudy, low near 36
Tuesday: Partly sunny, high near 45
Wednesday: Partly sunny, high near 47
Thursday: Chance of rain, high near 47
