It’s going to get hot around here. And by hot, we’re talking a whole week of sun and a potentially record-breaking 90-degree day on Monday.

A strong high-pressure ridge over the Puget Sound region will keep cooling clouds and storm systems at bay over the next week, according to meteorologist Matthew Cullen of the National Weather Service in Seattle.

The high temperature is expected to reach about 75 on Friday and Saturday, Cullen said. Onshore air will cool overnight temperatures into the lower 50s, he said.

But Sunday, we lose the marine influence, and with nothing to cool us off at night, and the warm-up really happens, he said.

“There will be a very, very abrupt warm-up from Saturday to Monday,” NWS meteorologist Dustin Guy said Thursday evening. He added that we’ll likely see dry heat, noting that humidity percentages are expected to fall between 30% and 35%.



The high Monday, the first day of summer, is predicted to reach 89 degrees or even a record-breaking high of 90. It’ll gradually cool down Tuesday into the mid-80s, then return back to mid- to upper-70s Wednesday and Thursday, Guy said.

The record for June 21, logged at Seattle-Tacoma International Airport, is 89 degrees, set in 1992. The typical high for the date is 72, Cullen said.

The warm weather arrives amid concern about wildfire and drought conditions. So far, the state has responded to at least 410 fires on state lands, a figure Public Lands Commissioner Hilary Franz has called “the highest number of year-to-date fires in our history.”

In response to rising temperatures, the state Department of Transportation took to Twitter on Thursday, encouraging drivers to help mitigate hazards that might result.

“Sounds like some really warm temperatures are headed our way,” one tweet read. “Please be sure to do your part to reduce the risk of roadside fires. Dispose of your litter properly and make sure your vehicle is well maintained.”

The high temperatures could also throw into fresh relief Seattle’s well documented lack of air conditioning, a state of affairs that, in previous years, has inspired some locals to come up with creative cooling solutions, from hosing down their homes to a pre-bedtime swim.


The sunshine doesn’t seem likely to let up any time soon. At the end of May, the state Department of Ecology issued a drought advisory for most of Washington.

Cullen said he sees no rain in sight at the moment, and that we’re likely looking at sunny, dry weather for seven days — at least.

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