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Seattle’s fall 2023 weather forecast

Prepare for fall weather in Seattle, Wa with these seasonal temperature and precipitation outlooks.


Green Lake has to be one of our favorite places to enjoy the fall colors.

We know the question on your mind, Seattleites — when’s it going to get cool?

Thanks to the National Oceanic and Atmospheric Administration’s Climate Prediction Center, we know what temperatures and precipitation trends to expect in our city for September, October, and November. While exact weather conditions typically can’t be predicted more than a week in advance, here’s a seasonal outlook to help you prepare for what fall will bring.

Reminder: The first day of fall is on September 23.

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Charts are showing that a majority of the United States will see higher than average temperatures this fall.

Map via NOAA Climate Prediction Center


Think warm. This fall, Seattle has a 33-40% chance of temperatures being higher than normal.


Expect slightly less precipitation. Seattle has a 40-50% chance of seeing below average rainfall amounts this fall.

By the month: September

Typically, the cooling off begins with daily high temperatures averaging around 67°. However, NOAA has forecasted a 95% chance of an El Niño weather pattern continuing through the winter, which typically brings warm, dry conditions to the PNW during the colder months. Summer may last a little longer this year.

Also, while our daylight hours will become outweighed by the ones we spend in the dark after the Fall Equinox, we’ll still be getting a solid 12 hours in the sun for awhile. Soak it up while you can.

By the month: October

October plunges us down into a daily high temperature average of 59°. Definitely sweater weather by this point.

By the month: November

It’s certainly turkey carving season with a daily high temperature average of 51°. But this month also brings us the dreaded end of Daylight Saving Time on Sun., Nov. 6. On this day, we’ll see a 7 a.m. sunrise and the return of the infamous 4 p.m. sunsets. Yikes.

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