Summer weather

Tim Durkan

It appears the infamous June Gloom will spare us — at least for now.

“Normally this month, we have June Gloom: cloudy skies, temperatures in the 60s. But this year, it’s been unusually nice, [with] temperatures above normal and extraordinary amounts of sun,” Mass said.

Hang in there—the feel of Seattle's great summers is coming back this weekend.  

The autumn-like weather we’ve been having this week will yield to more typical summer fare, with blue skies in the afternoons and temperatures in the 70s, says KPLU weather expert Cliff Mass.

Washington State Department of Natural Resources / Flickr

Drizzly skies are expected to yield to warmer temperatures and some sun this weekend, because of an upper level trough over us and that’s causing upward motion and clouds, says Cliff Mass, KPLU’s weather expert.

It may be summer solstice, but summer isn’t quite here yet, says Cliff Mass, professor of Atmospheric Sciences at the University of Washington and KPLU's weather expert.

The reason, says Mass: “Summer solstice … is astronomical summer. It is not necessarily meteorological summer,” said Mass.”

“And in the profession, we all joke—and it’s not much of a joke—that summer starts here in Seattle on July 12. And in fact, there’s a lot of truth to that,” he said.

Today’s going to be hot again, but it's already cooler than expected this morning, says KPLU weather expert Cliff Mass.

“We had some marine air that pushed up the coast, clouds have inundated the coastal areas. So if you're on the coast it's going to be cooler," he says. "And here in the interior we're starting cooler: five to ten degrees in some places. But the trouble is this cool marine air is very thin."

He says that cool marine layer will burn off fast, yielding to hot temps aloft. So today he expects highs of high 80s to 90 closer to the coast. And away from the water, perhaps the low 90s.

"So one more warm day. Then tomorrow a step down. Today's the hottest day."

There's a chance of thunderstorms Saturday afternoon, which could have a big impact on the wildfires in Cle Elum and Thorp. The danger is the chance of lighting without rain.

Mallory Kaniss / KPLU

The National Weather Service says Friday should be the last day of the heat wave in Washington.

The National Weather Service says Thursday and Friday are likely to be the hottest days of the year in Western Washington.

Forecasters issued an excessive heat warning with highs in the 90s for the Puget Sound area including Seattle, Tacoma, Bremerton and Everett. A push of marine air should bring some relief on Saturday in Western Washington.

Assuming you can't spend a heat wave bobbing up and down in some cool body of water, the next best option is to hunker down inside with air blowing on you, right?

Preferably it's from an air conditioner set on arctic chill.

But if there's no AC, then an electric fan would be the next best thing, wouldn't you think?

Well, it turns out health experts aren't so sure about electric fans. And they say using one in a really brutal heat wave can sometimes do more harm than good.

sea turtle / Flickr

The forecast is for plenty of sun for today and days to come.

As KPLU forecaster and University of Washington professor Cliff Mass put it in his blog: It happens almost every year, and we sometimes lose faith that it will occur.

"Often, as in this year, it happens right after July 4th, and almost certainly by mid-July, resulting in the oft-noted statement by the meteorological cognoscenti that summer starts on July 12th in western Washington."

Expect these morning clouds to clear out and to have a sweltering long weekend (for the Northwest this summer anyway) – and through the next week as well.

Cliff Mass, a professor of atmospheric sciences at the University of Washington and KPLU’s new weather commentator, says "It's going to be great."

Oh and with all the talk of hurricanes on the East Coast, what about West Coast hurricanes? We get 'em.