• Cool today, turning much warmer this short work week; temps popping into the high 80s - low 90s.
• Weekend of Sep 7,8 looks dry, with slight cooling on Sunday, more so on Mon the 9th.
• Week of Sep 9-13 trending mild (60s-70s primarily) with chance for showers over Vancouver Island on the 9th; another shot of showers on Wed, mainly over Cascades, east into ID. Fri the 13th looks rather warm.  Muggy mid-week.
• Weekend of Sep 14,15 looks dry & warm.  Mt Angel Oktoberfest time.
• Week of Sep 16-20 trending warm to start, then cold front dropping in from BC, to set up possible showers by end the week.  

Mug up here this Fri for our next update.  

"Many politicians refuse to answer all your questions on the grounds that it might eliminate them."

Friday August 30

Time to wrap up another month, along with the end of traditional 'summer vacation' with the big US Labor Day holiday weekend.  Great weather ahead for both the holiday and the beginning of September.  Are you Mug-ready?

Temperatures across the PNW will generally range from the mid-80s to mid-90s from today all the way until at least Sep 15.  The exceptions will the next 3 Sundays, as models indicate an onshore strong enough to cool down afternoon temps by approx. 5-8 degrees, for a day or so.  No specific storm systems nor high risk of thunderstorms are currently charting.

Another simple forecast: sunshine & dry for the next 16-17 days.  Take advantage, fall rains will arrive eventually.

Simple forecast, so let’s get to it, shall we?  Refilled?

A weak, cool Low will spin across the NW corner of the PNW for the next couple of days, setting up quick rounds of precipitation north of Everett later today, and for the entire Puget Sound area north by early Tue.  Other than that, the rest of the PNW will be dry this week, with temperatures beginning to build into the upper 80s, possibly the lower 90s in southern OR & east sided, by the end of the week.

Labor Day Weekend:  models keep the region dry, with warm temps in play on Sat, but a push of marine air will tap down temperatures around the PNW on Sunday and Labor Day.  Actually, very fine holiday weekend weather is our forecast.  Enjoy.  There remains a chance for thunderstorms developing over the OR Cascades Sunday.  We’ll update this on Fri.    

The onshore flow ends by Tue Sep 3, so expect regional temperatures to pop into the 80s to upper 90s just about every day from Sept 4 through 9/11.  The weekend of Sep 7,8 looks rather toasty, with possible thunderstorms developing over the Cascades (not unusual this time of year).

In Summary: summer temperatures will prevail for the next 16 days, excluding the brief downturn around the Sound the next 48 hrs, and late Labor Day weekend.  

Enjoy the cooler pattern;  summer heat will return soon.  Morn’n ☕️ time.

Cool weekend ahead.  Today & Saturday could present a few showers, or a thunderstorm, as a Low spins just west of Brookings/Crescent City.  It will be much wetter around the Puget Sound & southern BC, with the potential for nearly an inch of rain by Saturday night.  Sunday looks pleasant and drier.  As we enter the last week of August, our next HEAT UP will begin.

While a weak Low brings a chance for a shower or two over the northern Puget Sound on Mon/Tue, the rest of the PNW will begin the week of Aug 26-30 on the dry side, with temperatures warming up a bit each day.  Good chance for a few 90 degree plus readings by Thu or Fri in western OR, SW WA.  Puget Sound will dry out by late Tue, with temps reaching into the 80s late week.  

Labor Day Weekend:  While it will be rather warm on Saturday, model runs suggest an onshore flow will begin Sunday, for cooler inland temps, along with possible thunderstorms building over the Cascades, esp by Labor Day.  Not a bad holiday weekend to end ’summer vacation 2024’ for many.

The short week after Labor Day (Sep 3-6), is charting as dry & pleasant, although on the MUGGY side.  A SW flow aloft will set off a few thunderstorms over the Cascades, moving south-to-north.  We won’t rule out the possibility for a thunderstorm to drift over the eastern edge of the Willamette Valley.

The first full weekend of September is trending dry, with temps in the 70s / low 80s.  Nice.

Calmer weather on the charts, for the time being.  Let’s do the Monday morn’n sip.  Mug ready?

Marine morning cloud deck will remain in play much of this week.  Onshore flow, driven by a weak Low pressure trough hanging west of the Olympic Range, will be the reason.  Odds are that the Puget Sound may not clear off completely until Thu, when that Low finally shifts south down the coast, just west of OR.  

The pattern charting for late this week is similar to the one last weekend, although not as strong.  Position of the Low will train moisture north over western OR & SW WA (maybe farther north, too) with increasing chance for thunderstorms & showers beginning late Thu or overnight into Fri.  (Grass seed growers may not be too pleased — too much moisture).  Expect cloudiness & showers to end the week; mild temperatures - pegging a bit below average for late August.  East side - possible thunderstorms/showers, even into ID.

The coming weekend:  clearing, south-to-north, warmer too.  However, another pesky weak Low may hold close to Vancouver Island, keeping cloudiness and cooler temps in play for NW WA & southern BC.  Not much enough moisture is charting for notable showers, just unseasonably mild and mostly cloudy.  For OR & ID & northern CA, the weekend will be fairly decent and warming each day.  In fact, the upper-level pattern is adjusting to set up the next HEAT UP to end the month, as expected.

Week of Aug 26-30 is trending dry and warm-to-hot, esp by the end of the week.  A weak shot of cooler marine air may hold temps down over the Puget Sound early on, but all of the PNW likely to turn summer-hot by the end of the week.  90s probable in many locations.  Just in time for Labor Day weekend.

Labor Day weekend:  Dry, sunny, rather warm on Sat; Sunday may present mid-level moisture training north from California, ushering in the threat for a thunderstorm, esp along the Cascades.  This is still iffy; however, Sunday & Labor Day should be a bit cooler, with plenty of sunshine to initiate September 2024.

Showers possible to start the post-holiday week, Tue Sep 3.

Bottom line: generally cooler than normal through the balance of August, with a heat-up possible after the 27th.

From the ’Net:  The adult version of "head, shoulders, knees and toes" is "wallet, glasses, keys and phone”.