No
you don't need a jacket based on the weather in Seattle, WA, USA 29 minutes ago
69°F21°C & Clear
Wind is 3 mph5 km/h from the Northwest, gusting to 6 mph9 km/h
| September 27 | ||||
| 7pm | 70°F21°C | 3 mph5 km/h Northwest | Clear | |
| 8pm | 70°F21°C | 4 mph7 km/h Northwest | Clear | |
| 9pm | 67°F20°C | 5 mph8 km/h North | Clear | |
| 10pm | 64°F18°C | 5 mph8 km/h North | Clear | |
| 11pm | 62°F17°C | 4 mph7 km/h North | Mostly Clear | |
| September 28 | ||||
| 12am | 61°F16°C | 5 mph8 km/h North | Mostly Clear | |
| 1am | 60°F15°C | 4 mph7 km/h North | Partly Cloudy | |
| 2am | 59°F15°C | 3 mph6 km/h North | Mostly Cloudy | |
| 3am | 58°F14°C | 3 mph5 km/h North | Mostly Cloudy | |
| 4am | 57°F14°C | 3 mph5 km/h North | Mostly Cloudy | |
| 5am | 56°F14°C | 3 mph4 km/h North | Mostly Cloudy | |
| 6am | 55°F13°C | 2 mph3 km/h North | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 27 | 57°F14°C | 70°F21°C | 2 mph4 km/h from Northwest | Mostly Clear | Mostly Cloudy |
| September 28 | 54°F12°C | 71°F22°C | 6 mph10 km/h from South | Mostly Cloudy | Drizzle |
| September 29 | 57°F14°C | 64°F18°C | 6 mph10 km/h from South | Rain | Drizzle |
| September 30 | 54°F12°C | 65°F18°C | 7 mph11 km/h from South | Drizzle | Drizzle |
| October 1 | 54°F12°C | 65°F18°C | 6 mph9 km/h from South | Drizzle | Rain |
| October 2 | 53°F12°C | 63°F17°C | 6 mph10 km/h from South | Rain | Rain |
| October 3 | 53°F11°C | 63°F17°C | 8 mph13 km/h from South | Drizzle | Drizzle |
Yes
Low of 54°F12°C, High of 72°F22°CWind: 6 mph10 km/h
Precipitation: None