Seattle, WA – Washington is holding onto summer warmth, but cooler fall air will begin settling across the region by Thursday. Drivers and commuters should prepare for crisp mornings, with temperatures in the low 50s, before sunshine returns later each day.
According to the National Weather Service in Seattle, Tuesday will bring highs near 74 under clear skies with light north winds. Conditions stay dry and calm into midweek, but by Thursday, temperatures dip slightly into the upper 60s, signaling a seasonal shift. Motorists on I-5 through King County can expect excellent visibility for now, though overnight cooling could create slick spots in shaded areas.
Seattle and surrounding cities, including Bellevue and Shoreline, will see mostly sunny skies dominate through Friday. Evenings cool into the low 50s, a reminder that fall has arrived across Western Washington. Outdoor plans remain safe, but early mornings may require a jacket.
Looking further ahead, clouds return by Saturday night with a stronger chance of rain building into Sunday. That system may dampen travel plans and slow traffic across Puget Sound as roads turn slick. Residents should monitor updates later this week, especially if planning weekend outdoor events.
While the first week of fall brings no severe hazards, the trend toward cooler, wetter conditions will signal the approach of the wet season. Prepare now for changing travel conditions and keep rain gear ready for Sunday.
Warnings are not in effect, but updates are expected later this week.
Five Day Forecast for Seattle, WA
- Tuesday: Sunny, high near 74, low 55.
- Wednesday: Sunny, high 73, low 53.
- Thursday: Mostly sunny, high 67, low 51.
- Friday: Mostly sunny, high 69, low 54.
- Saturday: Mostly sunny early, clouds late, high 72, low 55. Rain chance grows Sunday.
