Washington commuters step into a damp, gray morning as rain taps windshields and puddles spread along curbs. In Seattle, the first Monday of 2026 starts wet and chilly, with conditions set to turn more unsettled through midweek.
According to the National Weather Service, a Coastal Flood Advisory remains in effect through mid-morning Monday. Light to moderate rain continues early, with temperatures hovering in the mid-40s. While rainfall amounts stay modest today, saturated ground and high tides raise flooding concerns along low-lying coastal areas.
Across King County, rain chances increase later Monday night as a stronger system approaches. Winds pick up, with gusts topping 20 mph at times. Drivers should plan for slick travel on I-5, Highway 99, and neighborhood arterials, especially during school drop-offs and the evening commute.
Tuesday brings steadier rain and heavier bursts at times. Highs reach the mid-40s, but colder air begins to filter in after dark. By Tuesday night and into Wednesday, temperatures dip toward the upper 30s. Rain may briefly mix with snow, particularly during early morning hours and in higher elevations. Accumulation looks minimal for downtown Seattle, but slushy spots could develop on bridges and untreated roads.
Wednesday stays wet and cold, with rain continuing and occasional rain-snow mix possible before temperatures rebound slightly. By Thursday, rain remains likely, though snow chances ease as highs return to the mid-40s.
Meteorologists note this pattern reflects a broader winter setup across the Pacific Northwest, with multiple systems lining up offshore. Drivers should stay alert for changing road conditions and allow extra time this week.
Noticing slick streets or wintry flakes where you are? Share what you’re seeing around Seattle.
Five Day Weather Outlook for Seattle, Washington
Monday: Chance of rain early, high near 44
Tuesday: Rain, high near 45
Wednesday: Rain, possible rain-snow mix, high near 43
Thursday: Rain likely, high near 44
Friday: Chance of rain, high near 48
