Seattle weather
Loading live data…Cloudy,much the same tomorrow
NWS, the American and the European model put Seattle's high today between 67° and 72°, a 5° split. Tomorrow looks cloudy around 69°, with a 0% chance of rain.
CheckWeather.io on iPhoneFree. No ads, no account.Seattle weather alerts and warnings
active National Weather Service watches, warnings and advisoriesChecking the National Weather Service for active alerts covering Seattle…
Seattle weather in numbers
from 30 years of measured normalsSeattle swings 42°F across the year, from 78°F highs in July to 36°F lows in February, and December is usually the wettest month in a year that brings about 43 in of precipitation.
The weather map: all three models at once
NWS, American, European side by side around Seattle and nearby towns.Live rain radar →Seattle in 3D: the weather on the streets, hour by hour
Rain, sun and real shadows drawn on a 3D map of Seattle, 48 hours ahead. Drag the timeline, pick what you are doing or where you are going, and read the verdict for that hour.Full screen ↗What are you doing?
Where are you going?
Seattle hourly forecast: next 14 hours
consensus of the three modelsRain in the next 24 hours, model by model
each model's own hourly precipitation, side by sideLoading the three models…
Seattle 10-day forecast, out to 14 days
where the models agree, and where they splitSeattle, Washington (WA). Below we compare what NWS, American, European forecast for Seattle right now and flag exactly where they disagree, then break down Seattle's weather month by month and which forecast model has been most accurate here.
We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.
Seattle weather by month
what to expect in Seattle through the yearHere is Seattle's typical weather in each month: the average daytime high and overnight low in °F, how each month feels, and the wettest month marked. Use it to plan any trip to Seattle by season.
What Seattle's weather is like through the year
Seattle runs from warm summers, with July highs near 78°F, to cold winters, when February lows sit around 36°F (a swing of about 42°F across the year). December is usually the wettest month, and Seattle sees roughly 43 inches of precipitation annually.
Best time to visit Seattle
The most comfortable time to visit Seattle is usually May, June, July and August, when daytime highs sit in the pleasant 60-78°F range and the heaviest December rain is behind you.
Which forecast is most accurate in Seattle?
CheckWeather Score, graded against the weather that actually happened
The CheckWeather Score blends temperature, wind and rain accuracy, each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.
Bottom line: over the last 30 days the American model has been the most accurate forecast for Seattle, scoring 88/100 on our CheckWeather Score, ahead of the European at 86. See the full US accuracy scoreboard for exactly how every model is tested.
What do you think of the forecasts?
your vote countsThe accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.
One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.
Where the models disagree
temperature and rain, judged separatelyThe models often agree on temperature and still split on rain, and rain is usually what decides whether a plan survives. A wide rain range means the shower is genuinely uncertain, not that the forecast is wrong.