09/20/2025
Have had some personal things going on this weekend - here is an update from Scott!
IS THIS THE PERFECT SEATTLE FORECAST?
OK I know that’s a tricky headline since around here ask 10 people what their perfect Seattle forecast is and there won’t be any solid consensus.
But I think what we’ve got the next 7-10 days might be close?
Now that we’ve stopped baking the Seattle area with flash/freak heat waves, the sunshine has been a lot more manageable. Seattle reached 76 Friday which is a little on the toasty side for mid September but few complaints.
Next up is a more robust front — that one last weekend I joked was sort of like a “preseason” front; the one this weekend is ready for the regular season.
But even lending more toward the “perfect” forecast scenario is that most of the rain is pegged for overnight Saturday night, so even your Saturday outdoor plans look OK, with rain holding off in the I-5 corridor till around the 10-midnight time frame.
Still, this front should do a much better job of getting everyone a good soaking rain. Widespread rainfall totals of 0.30-0.50” are forecast by midday Sunday — just what the doctor ordered. That should do wonders to knock down the Olympic and Cascade fires again.
That's crucial because the pesky Bear Gulch Fire is at it again with terrible smoke impacts Friday night. With a north wind and sinking air the air quality in parts of Mason and Thurston Counties have dropped to very unhealthy levels -- even "hazardous" readings in Hoodsport where the AQI was a ridiculously bad 675, and over 200 around Shelton ("Very Unhealthy" levels.)
As mentioned, the first half of Sunday will see lingering rain but the rain should taper off in the I-5 corridor after about noon or so, with a drier, albeit cooler and breezy Sunday afternoon (winds enough to give the air a fall-like feel, but not impactful— like around 25 mph gusts.)
The exception to the drier afternoon is in the Puget Sound Convergence Zone — you keep rain in the forecast through the day Sunday.
So sun fans get Saturday; rain fans get Sunday (ish). Who gets next week?
Sun fans appear to get a bonus week. In a bit of deja vu, we’re sunny and pleasant Monday, then warm up again on Tuesday — though NOT 90s (😅— don’t deploy the Emergency Kittens just yet!), more like mid-upper 70s.
Then like this week, it’s a gradual cool down pointing to… dealer’s choice? Depending on your forecast model of choice, a sunny and warm weekend, says the current Euro model, or quite wet and cool, which is where the American-GFS is leaning. (Apparently the Euro model is no longer into the Wishcasting business this month.)
Until then, we’ll see if we can keep things in perfect balance.
But let’s see if I’m right. What’s your idea of perfect weather?
(Photo below: Can see the Bear Gulch Fire smoke lingering over the Olympics and Kitsap Peninsula looking west over Elliott Bay from the Space Needle. Courtesy Space Needle)