Cloudy skies · Washington
How cloudy is Seattle?
Seattle right now
48°FClear skies
- Today57°F / 50°FClouds
- Tomorrow58°F / 49°FRain
- Monday51°F / 44°FClouds
Cold enough to see your breath, for free.
Live from OpenWeatherMap. Alerts from the National Weather Service.
In a typical year, the sky over Seattle is mostly cloudy or overcast about 60% of the time, and clear or nearly clear about 27%.
January is the cloudiest month, mostly cloudy about 76% of the time, and August the least cloudy, at about 39%. That makes it the 6th cloudiest sky of the 116 US cities we track.
Last updated
The forecast for the next 48 hours has the sky mostly cloudy about 50% of the time.
Seattle is famous for cloud, but at about 60% of the time mostly cloudy it isn’t even the cloudiest city we track. Syracuse, Detroit, Pittsburgh, Cleveland and Buffalo all beat it.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
The sky at a glance
| Mostly cloudy or overcast, all year | 60% |
|---|---|
| Clear or nearly clear, all year | 27% |
| Mostly cloudy, December to February | too few readings |
| Cloudiest month | January, 76% |
| Least cloudy month | August, 39% |
Shares of hours across a typical year. Mostly cloudy means at least five eighths of the sky covered; clear or nearly clear means two eighths or less.
Cities with about the same sky
- Buffalo, New York: mostly cloudy about 60% of the time
- Rochester, New York: mostly cloudy about 59% of the time
- Cleveland, Ohio: mostly cloudy about 61% of the time
More about the weather here
Source: NOAA U.S. Climate Normals, hourly, 1991 to 2020, station USW00024233. Airport sensors see cloud up to about 12,000 feet, so thin high cloud isn’t counted.