Seattle weather: Thunderstorms exit, summer heat returns

Published July 16, 2026 3:17 PM PDT

Thunderstorms and showers are wrapping up in Western Washington, and warmer, drier weather is on the way.

A low pressure system moving across the Pacific Northwest will keep scattered showers and a few thunderstorms around through Thursday evening. Not everyone will see rain, but many communities have at least a chance of getting wet before skies begin clearing overnight. Early Friday morning, most of Western Washington will be dry, setting the stage for a stretch of warmer and drier weather.

A map showing the overnight lows forecast for Friday morning in Western Washington.

Rain will subside and we'll be looking at mostly cloudy skies by early Friday morning. (FOX 13 Seattle)

Thunderstorms wrapping up on Thursday

The best opportunity for showers and thunderstorms Thursday afternoon and evening will be across the Olympic Peninsula and north of Seattle, toward Whatcom County.

Thursday's thunderstorms also bring an important wildfire concern. A Red Flag Warning remains in effect for parts of the Olympics and Cascades through this evening. Even a single lightning strike can spark a wildfire if it hits dry vegetation, and gusty winds around thunderstorms can make any new fire spread quickly.

A map showing the areas where a Red Flag Warning is in effect.

A Red Flag Warning is in effect for parts of Washington State. (FOX 13 Seattle)

West of the Cascades, we don't see a lot of thunderstorms, but the spring and summer months are the most common times of the year for them.

A graph showing how many days with lightning in Western Washington by month.

While rare, April through August is the most common times for lightning in Western Washington. (FOX 13 Seattle)

Dry weather returns Friday and Saturday

Friday and Saturday will feature much more sunshine after morning clouds. Afternoon high temperatures will rebound into the mid to upper 70s around the greater Seattle area on Friday, 80s on Saturday.

Summer heat builds next week

High pressure will strengthen over the Pacific Northwest starting Sunday. Inland highs will climb into the low to mid 80s Sunday before reaching the mid to upper 80s Monday through Wednesday.

The 7 day forecast for the greater Seattle area.

Western Washington will return to warmer drier weather this weekend. (FOX 13 Seattle)

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The Source: Information in this story comes from weather models interpreted by the FOX 13 Seattle weather team.

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