Yes
you do need a jacket based on the weather in Seattle, WA, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
57°F14°C & Mostly Clear
Wind is 1 mph2 km/h from the West, gusting to 3 mph5 km/h
| September 8 | ||||
| 11am | 58°F15°C | 1 mph1 km/h West | Partly Cloudy | |
| 12pm | 61°F16°C | 2 mph2 km/h West | Partly Cloudy | |
| 1pm | 64°F18°C | 2 mph3 km/h West | Partly Cloudy | |
| 2pm | 67°F19°C | 3 mph5 km/h West | Mostly Clear | |
| 3pm | 69°F21°C | 4 mph7 km/h West | Mostly Clear | |
| 4pm | 71°F22°C | 4 mph7 km/h West | Mostly Clear | |
| 5pm | 72°F22°C | 4 mph7 km/h Northwest | Mostly Cloudy | |
| 6pm | 73°F23°C | 4 mph7 km/h Northwest | Mostly Cloudy | |
| 7pm | 73°F23°C | 5 mph7 km/h Northwest | Mostly Cloudy | |
| 8pm | 73°F23°C | 5 mph9 km/h Northwest | Mostly Cloudy | |
| 9pm | 71°F22°C | 6 mph9 km/h North | Mostly Cloudy | |
| 10pm | 69°F20°C | 6 mph9 km/h North | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 8 | 57°F14°C | 73°F23°C | 4 mph6 km/h from Northwest | Partly Cloudy | Mostly Cloudy |
| September 9 | 57°F14°C | 72°F22°C | 4 mph6 km/h from North | Mostly Cloudy | Mostly Clear |
| September 10 | 57°F14°C | 73°F23°C | 2 mph3 km/h from Northwest | Partly Cloudy | Partly Cloudy |
| September 11 | 58°F15°C | 71°F21°C | 5 mph7 km/h from South | Mostly Cloudy | Partly Cloudy |
| September 12 | 57°F14°C | 72°F22°C | 3 mph6 km/h from Northwest | Partly Cloudy | Partly Cloudy |
| September 13 | 57°F14°C | 73°F23°C | 2 mph4 km/h from Southwest | Mostly Cloudy | Drizzle |
| September 14 | 59°F15°C | 70°F21°C | 5 mph8 km/h from West | Drizzle | Partly Cloudy |
Yes
Low of 57°F14°C, High of 73°F23°CWind: 4 mph6 km/h
Precipitation: None