- Clothing
- Light waterproof jacket with an umbrella is a smart choice.
Tomorrow's Weather Forecast - Seattle
Tomorrow's weather in Seattle. high 21°C (70°F), low 11°C (52°F). Overcast.
Tomorrow’s Outlook
Tomorrow will be 2°C warmer than today. Showers are likely in the evening, with rain probability peaking near 58%. That risk lines up with humidity averaging 73% through the day the more moisture in the air, the more readily clouds build into showers. Humidity holds around 73%, giving the air a damp, heavy feel even without much heat behind it. A light breeze near 17 km/h is expected. Sunrise is at 6:42 AM and sunset at 7:27 PM, for about 12h 44m of daylight.
- Tomorrow
- 21°/ 11°
- Today19° / 11°
Tomorrow’s Hourly Weather Outlook
Morning6 AM – Noon13°
- Rain probability
- 3%
- Wind speed
- 7 km/h
AfternoonNoon – 6 PM20°
- Rain probability
- 14%
- Wind speed
- 6 km/h
Evening6 PM – Midn16°
- Rain probability
- 58%
- Wind speed
- 17 km/h
NightMidn – 6 AM13°
- Rain probability
- 3%
- Wind speed
- 7 km/h
24-Hour Rain & Temperature Forecast
Tomorrow12 Sep
··
Planning Advice for Tomorrow
- Outdoor
- Outdoor plans may need flexibility; showers are likely.
- Travel
- Wet roads may slow traffic; allow a little extra time.
Sunrise & Sunset
Sunrise
Dawn 6:12 AMTotal Daylight
Full day forecastSolar noon 1:04 PM
Sunset
Dusk 7:57 PMvs today-4 min daylight
Sunrise shift1 min later
Sunset shift2 min earlier
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Seattle is forecast to reach a high of 21°C tomorrow, with an overnight low around 11°C. Expect a fair chance of rain (58% probability) and a gentle breeze averaging 17 km/h. Air quality is currently good (AQI 47), with no notable outdoor health concerns.
Today vs Normal
19°C-2° below normal
The long-term average high for today is 21°C.
10 of the last 28 days with published data ran above normal.
It continues that pattern - today's forecast is also running below normal.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air Quality
Good
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.