Temperatures will trend on the up & up over the next couple of weeks.  Be water-ready.  

That’s right, not much precip is charting as we head into July - per normal - but what is charting are increasing temperatures to the level of threatening 100+ degrees. at times.  We do see very limited chances for showers, primarily over the far NW corner of WA & Vancouver Island around July 5-8; plus the usual summer threat of thunderstorms along the eastern slopes of the Cascades and the eastern basins.  

• This weekend: turning warm-to-hot, with plenty of sunshine.  Temps in the upper 80s to 90s.  100s possible in the usual hot spots.
• Week of June 30 - July 4th: sunny & warm-to-hot Temps mostly in the 80s & 90s.  Cooling slightly by mid-week.
• July 5,6 weekend: pleasantly warm; not too hot.
• Week of July 7-11: turning partly cloudy with chance for a shower on Tue the 8th, mainly Puget Sound north, then heating up into 80s & 90s.
• July 12,13 weekend: HOT.  Triple-digits possible in many locations, both sides of the Cascades. 

No ‘irrigating’ rainfall, so water managers will be busy.  Perfectly normal for July.  Small fruit harvesting will kick into gear.  Fire risk increasing.

As we head into the early portion of the Summer season, let’s search the models for heat-ups.  We have found some.  ☕️ Fill ‘er up, and take a look.

Bottom line for this week —> we’ll get some mid-to-high cloudiness, mild-to-warm temps, along with a chance for a small amount of precip in the Wed to Fri - period, primarily north of Portland.   However, by the weekend, temps will warm up into the 80s to lower 90s around the PNW, ushering in an extended stretch of Summer dry.

We do see a slight cool-down with increased onshore flow next Mon through Wed, June 30 - July 2.  Plenty of sunshine.  As the 4th of July approaches, the model solutions begin to vary, with some suggesting a cool Low and showers by the 4th; others point to continued warmth in the 80s to lower 90s.  For now, we’ll lean toward dry and summer warm.  

We also see a possible triple-digit heat wave developing during the week AFTER the July 4th extended weekend; especially Wed-Thu, July 9,10.  Water managers plan ahead, just in case.

Longest day of the year, and of course, it has to be the wettest period of the whole month. Go figure.

Cool & damp today through late Saturday.  ⚠️CAUTION:  there is a moderate chance for thunderstorms around SW WA & western OR during this period.  Cold air aloft, peaks of sunshine warming the surface, and boom -> a thunderstorm can form.  Gusty winds, lightning, hail all possible; stay safe!

Indications are that Sunday the 22nd should bring on drier conditions, although temps will run below normal.  

Next week will bring a return to sunshine, with the exception of Thu Jun 26, when a quick moving trough of cooler temps & showers cross western WA.  Temps next week should run in the lower 70s; breezy afternoons.  

The last weekend of June will present as dry, warm & summer-like, with temps topping out in the 80s in most locations; low 90s possible in southern OR and around Burns, OR.

July is now charting to start out dry, with some cloudiness over the far NW corner of WA and portions of BC at times.  Temperatures should run in the normal range for the first week or so.  The 4th?  Well, breezy with a fairly strong onshore flow; dry.  We’ll see.

A couple of wet days are now in the works, with continued mild temps holding on through the rest of June.  Here’s the latest outlook.

This week will remain dry until Fri, except for the slight chance for showers over the higher elevations of NW WA & southern BC.  An afternoon onshore NW breeze will also be in play.  When the Summer Solstice arrives this Friday, so too will be a cold front moving down the coast of BC; the front will be strong enough to set off showers on Fri and steady rain this Saturday for the entire PNW.  Temps will cool down into the 50s, for a rather chilly June weekend.

Next week will bring back dry conditions and sunshine, with morning marine clouds at times.  A weak system may clip the northern corner of the PNW on Fri the 27th, but right now, models do not indicate this one to be all that damp, mostly a cloud event for NW WA. The final weekend of June 2025 also looks dry, but on the cool side of summer.

In the long-range view, the first few days of July are trending WET.  (We’ve seen that ‘show' many times -> damp & cool until after the 4th of July.  Plenty of time for models to give us a clearer picture.)

A cooler wx pattern is now in place around the PNW.  Let’s look ahead for the rest of June.

We noted in the last report that the balance of June 2025 was charting as pleasant & dry.  An adjustment in that outlook is now charting to begin later next week, as the chance for some precipitation has been added to the forecast.   A rather stationary upper-level Low has been parked over the Alaskan Panhandle, ushering in the onshore flow, morning marine clouds & cool temps that we are experiencing now.  This should hold through the weekend and through Tue Jun 17.  

It looks like that Low will slowly shift farther south, opening the door for slightly cooler temps, more cloudiness and showers, esp for the Puget Sound.  Wednesday the 18th could present such a change, with western OR getiing in on the action as next week ends.  The Summer Solstice - next Friday Jun 20 - looks generally dry, but with the chance for a few stray showers.  

The weekend of Jun 21,22 currently charts as mostly dry, but cooler than normal for June.  For this forecast, we will emphasize that Mon & Tue Jun 23, 24, could be the wettest period between now and July 1.  

It’s understood that all of the above could change, depending on the position of that upper-level Low - so keep your Mug handy for updates.