Nationwide, close to 140 million people are expected to travel during the Labor Day holiday weekend, according to AAA . Approximately 90% will travel by car, with the remainder opting to fly or take Amtrak. More than 17 million are anticipated to fly on about 36,500 flights during the holiday weekend period.

Here is what you need to know before you go.

Weather

Overall, for Western Washington, the Labor Day holiday weekend is expected to have seasonable temperatures, much cooler than a week ago. There will be a mix of clouds and sunshine with highs climbing into the 70s to lower 80s in the interior, including the Puget Sound region. Any threat of showers should remain in the mountains, including a risk of late-day thunderstorms on Friday and Saturday.

For the outer coast, that region

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