Paddleboarders float on the water at Lake Ballinger on Aug. 9. (Olivia Vanni / The Herald)

Paddleboarders float on the water at Lake Ballinger on Aug. 9. (Olivia Vanni / The Herald)

Last gasp of summer to come to Snohomish County later this week

After a wet spell, temperatures were expected to creep back up this week, including 90s in Darrington and 70s in Everett.

EVERETT — Summer’s not over yet.

Sunshine and balmy temperatures were expected to return Wednesday. Forecasters anticipate them to peak Thursday and remain into early next week.

A heat advisory will be in effect from 8 a.m. Thursday until 11 p.m. Friday for much of Western Washington.

Eastern Snohomish County will be hottest this week, with Darrington expected to hit 96 degrees Thursday, 94 on Friday and 91 on Saturday, according to the National Weather Service.

Other inland cities will also be warm Thursday, with 87 degrees predicted for Lake Stevens and 90 in Monroe.

“We’re going to see temperatures 10 to 15 degrees above normal for this time in September,” said National Weather Service meteorologist Harrison Rademacher.

Residents can expect Thursday highs of 83 degrees in Lynnwood and in Everett.

Temperatures later this week could edge the unofficial records, Rademacher said.

“In some places we might be approaching record highs, but most likely we won’t see any widespread records for this heat event,” Rademacher said.

Forecasts predict a Thursday high of 81 degrees at Paine Field. The unofficial record for Sept. 5 is 88 degrees, set in 2017.

After last month’s brief wet spell, conditions have dried out once more. Wildfire risk was likely to reach critical levels by Thursday, Rademacher said.

After this week, Rademacher expects temperatures will return to milder fall patterns.

Forecasts anticipate significant cooling by Sunday and light showers starting early next week.

For now, heat advisory guidelines recommend staying hydrated, spending time in air-conditioned rooms and taking breaks when working outside.

Connor Zamora: 425-339-3037; connor.zamora@heraldnet.com; X: @cgzamora02.

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