Today's Weather Forecast - Seattle
Today's weather in Seattle. high 20°C (68°F), low 15°C (59°F). Sunny.
Today’s Hourly Weather Outlook
- Wind speed
- 12 km/h
- Rain probability
- 1%
- Wind speed
- 9 km/h
- Rain probability
- 0%
- Wind speed
- 7 km/h
- Rain probability
- 6%
- Wind speed
- 10 km/h
- Rain probability
- 2%
24-Hour Rain & Temperature Forecast
Sunrise & Sunset
Air Quality Index & Health Advice
Air Quality Index
- Air quality level
- Good
- Dominant pollutant
- Dominant: PM2.5
- Monitoring station
- 10th and Weller, Seattle, Washington, USA
- PM2.5
- 10μg/m³
- NO₂
- 21.4ppb
- CO
- 500ppm
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Seattle is forecast to reach a high of 20°C today, with an overnight low around 15°C. That's 1° below the long-term average high of 21°C for this time of year. Expect little chance of rain (6% probability) and a gentle breeze averaging 12 km/h. Air quality is currently Moderate (AQI 59), driven mainly by PM2.5 at 13 μg/m³.
Today vs Normal
The long-term average high for today is 21°C.
10 of the last 19 days with published data ran above normal.
That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.