Sea-Tac confirms 12th day of 90+ degree weather, tying 2015 record

For a brief moment in the 3 p.m. hour, Sea-Tac hit 90 degrees which makes this the 12th day this year reaching 90 officially, tying the record from 2015.

Wednesday will be almost as warm, but with a weak disturbance aloft moving through. A few high clouds could cut down the temperature a degree or two. This disturbance could also set off a few mountain thunderstorms later in the day.

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The chance of thunderstorms affecting lowland locations looks pretty slim because of a lack of available moisture. Any thunderstorms in the mountains could come with plenty of lightning.

Thursday, the heat will back off a few degrees, but it will remain in the 80s for South Seattle.

By Friday and the Labor Day weekend, expect temperatures back to the 70s with a few more clouds, but also plenty of sun. These temperatures will still be above average for this time of year. Seattle’s normal high for next Monday, Labor Day, is 75 degrees.

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