July 2025 PNW Weather

[ShawniganLake]

On 7/2/2025 at 8:33 PM, KeyPeninsula_Wx said:

I think SEA will hit 100 atleast once or twice in the next 10 years. Which would be exceptional for SEA. Don’t think we beat 108 anytime soon though. 

It could easily be decades before SEA challenges 108 again.  
 

I think the PNW sees a big heat spike in late July or early August this year.  Maybe Seattle’s next shot at 100.  

[TT-SEA]

Satellite loop looks favorable for Seattle area and northward.

[DareDuck]

Just got home last night and just in time for a great thunderstorm. Amazing sunset with lots of lightning. Picked up .25” and now up to .60” for July. 

[Front Ranger]

12z for the mid range 7/10 a couple days ago

 

This morning's 12z for 7/10

[TT-SEA]

Here is what the ECMWF shows with that cloud shield today...

[ShawniganLake]

Phil’s AIFS shows a washout up here next week with 1-2” of rain by Saturday.  Let’s see how it does. 
 

 

[TT-SEA]

14 minutes ago, ShawniganLake said:

Phil’s AIFS shows a washout up here next week with 1-2” of rain by Saturday.  Let’s see how it does. 
 

 

12Z ECMWF shows a little rain with the mid-week system passing through BC and then looks warm next Saturday.

 

[Phil]

1 hour ago, ShawniganLake said:

It could easily be decades before SEA challenges 108 again.  
 

I think the PNW sees a big heat spike in late July or early August this year.  Maybe Seattle’s next shot at 100.  

I think that’s the least likely timeframe for ridging.

If mid-July is neutered, then mid/late August is the next subseasonal window primed for ridging.

[Deweydog]

Happy birthday America! Here’s to another 249 glorious (and likely even warmer) years!

[ShawniganLake]

Just had a black bear walk past me like less than 5 feet away.  I thought it was the persons dog out of the corner of my eye.  I screamed and it ran. 
 

I was sitting in my truck with the door open. And it basically walked around the open door and looked at me.

[Front Ranger]

1 hour ago, ShawniganLake said:

It could easily be decades before SEA challenges 108 again.  

I think the PNW sees a big heat spike in late July or early August this year.  Maybe Seattle’s next shot at 100.  

Years that Seattle metro official sites have hit or exceeded 100.

1925

1941

1955

1960

1981

1994

2009

2021

SEA definitely gets a 1-2 degree bump just from UHI increase alone compared to decades past, but still difficult to get past that 97-98 mark with most air masses.

[T-Town]

1 hour ago, Deweydog said:

Happy birthday America! Here’s to another 249 glorious (and likely even warmer) years!

Looks like he might have ensured he doesn’t create any little dummies. 

[LowerGarfield]

Bound for Kona.

[Rubus Leucodermis]

2 hours ago, Front Ranger said:

12z for the mid range 7/10 a couple days ago

 

This morning's 12z for 7/10

And then in the winter you have all the bUt WhY dO CoLD WavES AlwAYs buSt bUt NeVeR heAt WaVEs whines whenever a clown range arctic blast up and vanishes.

[TigerWoodsLibido]

1 hour ago, Rubus Leucodermis said:

And then in the winter you have all the bUt WhY dO CoLD WavES AlwAYs buSt bUt NeVeR heAt WaVEs whines whenever a clown range arctic blast up and vanishes.

Once it gets to 7-8 days the rug gets pulled.

[StormchaserChuck1]

1 hour ago, Rubus Leucodermis said:

And then in the winter you have all the bUt WhY dO CoLD WavES AlwAYs buSt bUt NeVeR heAt WaVEs whines whenever a clown range arctic blast up and vanishes.

That's because Front Ranger always points out colder trends. Recently a ridge developed in the medium range, that wasn't so strong in the long range, but no one mentioned that except I think tt-sea. 

[Front Ranger]

12 minutes ago, StormchaserChuck1 said:

That's because Front Ranger always points out colder trends. Recently a ridge developed in the medium range, that wasn't so strong in the long range, but no one mentioned that except I think tt-sea. 

I've just been pointing out the overall trends. Most of the big-time heat in the mid/long range for the PNW has gotten watered down so far this summer.

I was all over it when the almost-heatwave appeared and maintained in the models in early/mid June. And also pointed out when model consensus was reached about a week out for the couple of very warm days at the end of June.

[Port Angeles Foothiller]

3 minutes ago, Front Ranger said:

I've just been pointing out the overall trends. Most of the big-time heat in the mid/long range for the PNW has gotten watered down so far this summer.

I was all over it when the actual almost-heatwave appeared and maintained in the models in early/mid June.

Everything has been watered down on approach last few months it seems. Rain chances the most. Been a very climo temp and dry last few months. 

[Front Ranger]

5 minutes ago, Port Angeles Foothiller said:

Everything has been watered down on approach last few months it seems. Rain chances the most. Been a very climo temp and dry last few months. 

At least the one big, consistently modeled rain event last month delivered.

[TT-SEA]

Change of plans ended up with us on the boat.   So incredibly nice on Lake Sammamish.  Dead calm and feels hot.   Absolutely perfect 4th!    

[Port Angeles Foothiller]

21 minutes ago, Front Ranger said:

At least the one big, consistently modeled rain event last month delivered.

Thankfully. I underperformed a touch, but without that event it would be might sad here.

[T-Town]

HCS in full swing here with a comfortable 71 degrees.  

[MossMan]

Wind is blowing pretty good here at home so there must be a stout NW wind at the lake house. At home making sure my dog doesn’t injure herself this evening. This will be the first 4th I have not been at the lake house for a least a few hours since I have been alive. Was going to pop over there this morning but then heard there was a bad wreck near there which had the road shut down so traffic would have been a nightmare. 

Currently 71 inside and out! 
Happy 4th! 

[Tanis Leach]

5 currently active severe thunderstorm warnings in NWS Boise and Pocatello. 

 

Missed Severe thunderstorm watch. 

[StormchaserChuck1]

CPC forecast for the hottest 2 weeks of the year. 

[Eastwind]

18 hours ago, OysterPrintout said:

Not a bad night for some baseball 

 

18 hours ago, TT-SEA said:

We were at baseball game too.  

Just saw Julio strike out and Cal ground to end game with runners on 2nd and 3rd.  :(

Nothing like watching a baseball game on a nice summer day. We’re going to the Hillsboro Hops game tomorrow night down here. They’re going to have a fireworks show after the game. ️  

[TT-SEA]

1 hour ago, T-Town said:

HCS in full swing here with a comfortable 71 degrees.  

Wow.   It's been sunny on Lake Sammamish all day.   Crazy nnice.   So calm.    We have seen the mid level clouds to the south all day and never moved north.

[TT-SEA]

Off the lake now at dinner and getting more cloudy in Issaquah.    Too late to spoil our day though.  

[DeepFriedEgg]

BIG underperformer down here. Going to be a chilly evening for fireworks.

[Deweydog]

Appears LOCKED IN to be PDX’s coldest 4th in nine years.

[DeepFriedEgg]

Aside from a couple of heat spikes it’s been an average or below average summer. Actually relatively cloudy and not a lot of 80 degree days.

[TT-SEA]

Back to mostly sunny again with just thin clouds.   74 for a high at SEA and looks like 78 or 79 in Issaquah.   

It was unusually calm on the lake.   Outside of boat traffic... the lake was absolutely flat which is pretty rare in the middle of the day.   That is more of an evening thing on Lake Sammamish.   It tends to get very calm during late afternoon and evening which is the opposite of other places which get evening wind on summer days.

[TT-SEA]

Of course Cal goes 0-5 yesterday and ends the game with 2 runners in scoring position with a weak ground ball... and then he hit 2 homeruns today.   I am a Mariners curse.   I need to ignore them and maybe they will make the playoffs.

[TigerWoodsLibido]

Looks like we were at 78F today. Really pleasant under mostly cloudy skies.

[Tyler Mode]

Topped out at 69.6 with all day high overcast with a few low clouds too.

[MV_snow]

9 hours ago, TT-SEA said:

Here is what the ECMWF shows with that cloud shield today...

Ironically we went camping in Leavenworth as I wanted to guarantee a sunny 4th, and it ends up sunnier at home. Still a very nice day here as we were just on the edge of the cloud shield.

[TT-SEA]

Even at 7:30 its still in the low to mid 70s in a swath from south Seattle to Lake Sammamish.

BFI had a high of 76 today... and the stations around Issaquah were mostly in the upper 70s.   Its looks like it was much cooler to the north and the south.   We really hit the sweet spot.  

ECMWF shows some scattered morning clouds until about 11-12 tomorrow around Seattle but not a solid shield.   Then totally sunny in the afternoon and all day Sunday.    Mid and high level clouds exit overnight. 

[Eastwind]

Happy 4th of July weekend you all! Enjoy your freedom and fireworks!!!  

[T-Town]

A breezy 63 degrees here. Old skool fourth. 

[BLI snowman]

61 here, nice and brisk fireworks weather.