The Brief
- A Heat Advisory remains in effect through Wednesday, bringing record-level warmth to areas like Bellingham and unusually mild overnight lows in the upper 50s and lower 60s.
- A weather transition begins Wednesday and Thursday as strengthening onshore flow cools the region, leading to a significant cold front on Friday that will bring widespread rain, breezy conditions, and potential thunderstorms.
- An unusually cool low-pressure system will settle over the region by Friday night and Saturday, keeping showers in the forecast and dropping weekend high temperatures well below normal into the upper 50s and mid-60s.
SEATTLE – A Heat Advisory will remain in effect through Wednesday as toasty summer temperatures continue across the Puget Sound area.
A few temperature records are within reach today, especially around Bellingham. Tonight will stay unusually warm, with many locations only cooling into the upper 50s and lower 60s.
Cooler air returns Wednesday
The weather pattern begins shifting Wednesday as the ridge moves east of the Cascades and onshore flow strengthens. In simple terms, cooler Pacific air will begin pushing back into Western Washington.
Temperatures will still be warm, but most communities will see highs about five degrees cooler than Tuesday. Inland areas should top out in the mid-70s to mid-80s, while coastal communities cool into the 60s. Increasing high clouds will bring in that filtered sunshine look.
If you’re heading to the World Cup Match at Seattle Stadium, be ready for some warm weather.
Clouds increase Thursday
Thursday marks the beginning of a significant weather transition. Cloud cover will thicken throughout the day as the first organized weather system in a couple of weeks approaches the Pacific Northwest. While most inland locations should stay dry during daylight hours, rain could begin reaching parts of the coast during the late afternoon.…