MYNORTHWEST WEATHER

Enjoy the sunshine while it lasts—June gloom on the horizon, Cliff Mass says

Jun 9, 2025, 10:00 PM | Updated: Jun 10, 2025, 6:16 am

sun in tacoma- June gloom on the way...

Park goers enjoy the sunshine at Owen Beach in Tacoma. (Photo: Julia Dallas, MyNorthwest)

(Photo: Julia Dallas, MyNorthwest)

A series of warm days in western Washington will soon come to an end.

June gloom is on its way, Atmospheric Sciences Professor at the University of Washington (UW), Cliff Mass, told “The Jason Rantz Show” on KTTH Monday.

June gloom to arrive Thursday

“The June gloom will be here,” he said. “We’ll get it on Thursday, particularly, temperatures will struggle to get above the mid to upper 60s, so the marine air is going to come in. You’ll have the low clouds, and temperatures are going to be cool, and they’re going to stay cool for several days. So, June gloom will be here. It’s delayed, but it is definitely coming.”

Colder weather will be seen throughout western Washington, but temperatures in eastern Washington will remain warm, Mass added.

When asked about drought conditions, Mass said the reservoirs in the west are doing well.

“Seattle, for instance, is exactly at normal, and Tacoma is in good shape, and that’s true of Everett as well,” he said. “So the reservoirs are actually in pretty good shape on the west side, so that there’s not going to be a water shortage. But it has been drier than normal this month and last month. There’s no doubt about that.”

Cliff Mass on dry period: ‘You can’t pin it on global warming’

Mass also noted that the recent dry period has happened before and is not record-breaking.

“You can’t pin it on global warming, but you can pin it on natural variability of the atmosphere,” he said.

However, Mass said the Earth is steadily heating up.

“The truth is I think pretty clear, the Earth is warming slowly, and that’s having an effect on temperatures—they are one to two degrees Fahrenheit warmer than they were. So that’s true,” he said. “We have a warm period. Well, yesterday was 88 in some places, maybe it would have been 87 or 86 if there wasn’t global warming. That’s what we’re talking about. The question about droughts and things like that is much more tenuous. And so there’s no reason to think our precipitation here in the spring season is being affected by global warming.”

Listen to the full conversation below.

Listen to The Jason Rantz Show on weekday afternoons from 3 p.m. – 7 p.m. on KTTH 770 AM (HD Radio 97.3 FM HD-Channel 3). Subscribe to the podcast here. Follow Jason Rantz on XInstagramYouTube, and Facebook.

Jason Rantz on Seattle Red AM 770
  • listen to jason rantzTune in to Seattle Red AM 770 weekdays at 3-7pm to The Jason Rantz Show.

Jason Rantz Show

MyNorthwest Weather

western wa rain thunderstorms friday...

MyNorthwest Staff

‘Mainly mountain’ thunderstorms could move west Friday into the weekend

Enjoy the late-summer sunshine this week, as thunderstorms could strike western Washington starting Friday into the weekend.

1 hour ago

Mount Rainier...

Aaron Granillo

Firefighters make progress on wildfire near Mount Rainier’s Sunrise Visitor Center

Firefighters are gaining ground on a wildfire burning near one of Mount Rainier's most popular destinations, the Sunrise Visitor Center.

2 days ago

summer weather week...

Meteorologist Nick Allard, KIRO 7

Weather: This week brings nice, but shorter days as summer drifts away

Summer is still hanging on, but we’re starting to lose daylight pretty quickly now. We’re nearly two months past the summer solstice.

2 days ago

sea flights hawaii hurricane...

MyNorthwest staff with wire reports

SEA flights delayed, canceled as Hawaii recovers from Hurricane Lala

Flights at Seattle-Tacoma International Airport (SEA) are delayed or canceled as airlines work to recover from the storm that swept across Hawaii over the weekend.

2 days ago

wildfire smoke...

Ted Buehner

More wildfire smoke likely to sweep into western Washington

With the wildfire season likely to extend well into September, another change in the winds can sweep even more smoke across western Washington.

2 days ago

climate report earth hot...

Ted Buehner

Earth just had its 3rd-hottest year on record, latest climate report finds

The American Meteorological Society released the 36th annual State of the Climate report, highlights the warming planet, both on land and at sea.

4 days ago

Enjoy the sunshine while it lasts—June gloom on the horizon, Cliff Mass says