Seattle weather: Big swing in temperatures to end the week

Seattle weather: Warm, dry Thursday before return of rain

It will be another sunny beautiful day Thursday with highs warming into the 70s and 80s.

SEATTLE - After a warm and sunny Thursday across Western Washington, the weather pattern is set to make a sharp turn heading into Friday.

This evening will still feel very summer-like for inland areas, with temperatures lingering in the 70s and even low 80s before sunset. Coastal communities will stay cooler in the 60s thanks to the afternoon sea breeze and marine air.

An upper-level disturbance moving northeast out of California will combine with a trough approaching from the Gulf of Alaska tonight. East of the Cascades there is a slight chance of severe thunderstorms through the late evening hours. At the same time, a stronger marine push through the Strait of Juan de Fuca will bring increasing low-level moisture into Western Washington overnight.

It will be cooler with rain developing in areas around Western Washington on Friday morning. (FOX 13 Seattle)

Rain, thunderstorms to interrupt stretch of nice weather

By early Friday morning, expect clouds to thicken across much of the region with scattered showers developing, especially from Puget Sound eastward. A few weakening thunderstorms drifting west over the Cascades could also contribute to some early morning shower activity.

There is a slight chance of severe thunderstorms on Thursday evening in Eastern and Central Washington. (FOX 13 Seattle)

Friday will feel dramatically different compared to Thursday. Highs will struggle to reach 60 degrees in many interior locations.

Saturday will be partly cloudy and drier, with a few showers in the mountains.

Return of pleasant, summer-like weather

An upper-level ridge is expected to rebuild over the Pacific Northwest, bringing more sunshine and warmer temperatures heading into next week.

Highs will climb back into the 60s on Sunday, then into the 70s on Monday. Some spots could reach the low to mid 80s by Tuesday.

After a big cooldown on Friday in Seattle, temperatures will warm up again heading into next week.

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