Hopefully, you were able to get outside and enjoy the weather on this last weekend of summer. Fall officially begins Tuesday afternoon. And right on schedule, the weather is going to cool off noticeably this week.
For the rest of this evening, you can expect clouds to roll back over Puget Sound and the overnight low temperature will drop to the lower 50s and upper 40s tomorrow morning. Monday will be a mostly cloudy day. The morning low clouds will lift by the afternoon, but mid and high-level clouds will remain over the area, so I would expect only limited sunshine on Monday.
The high temperature tomorrow will be in the 60s around the islands and north of Seattle. There may be a few 70s on the thermometer to the south of Seattle…