This month's version can be summed up in a four words: "You've seen this before."
Updated Monday 3:55 a.m.
A slow moving front is sloshing its way across western Washington as we speak. The morning commute is going to be waterlogged. Plan on steady rain during the morning hours, then shifting to showers in the afternoon. Some areas could see up to a quarter inch of rain out of this system. Highs today will hit the low to mid 60s at best.
There will be a short break between systems Tuesday morning, but the rain will be back by the afternoon. Highs on Tuesday stay in the low 60s.
Cooler still on Wednesday as we stay gray and showery.
Right now the forecast models say Thursday through Sunday will be a mix of sunbreaks and showers with highs in upper 50s and low 60s. That is pretty much the template for fall around here.
The KOMO4 Forecast Team