Yes
you do need a jacket based on the weather in Seattle (Central Business District), Washington, United States 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
55°F13°C & Mostly Clear
Wind is 6 mph9 km/h from the North, gusting to 9 mph15 km/h
| February 28 | ||||
| 8pm | 54°F12°C | 6 mph10 km/h North | Clear | |
| 9pm | 51°F11°C | 4 mph7 km/h North | Clear | |
| 10pm | 49°F10°C | 4 mph6 km/h North | Clear | |
| 11pm | 48°F9°C | 3 mph5 km/h North | Clear | |
| March 1 | ||||
| 12am | 46°F8°C | 3 mph4 km/h North | Clear | |
| 1am | 45°F7°C | 3 mph4 km/h North | Mostly Clear | |
| 2am | 44°F7°C | 2 mph3 km/h North | Mostly Clear | |
| 3am | 44°F7°C | 2 mph3 km/h North | Mostly Clear | |
| 4am | 43°F6°C | 1 mph2 km/h Northeast | Mostly Clear | |
| 5am | 43°F6°C | 2 mph3 km/h East | Mostly Clear | |
| 6am | 42°F6°C | 2 mph3 km/h East | Mostly Clear | |
| 7am | 42°F5°C | 2 mph3 km/h Southeast | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| February 28 | 41°F5°C | 58°F15°C | 3 mph5 km/h from North | Mostly Clear | Mostly Clear |
| March 1 | 40°F4°C | 58°F14°C | 4 mph7 km/h from South | Partly Cloudy | Cloudy |
| March 2 | 45°F7°C | 51°F10°C | 3 mph5 km/h from West | Cloudy | Cloudy |
| March 3 | 43°F6°C | 49°F10°C | 5 mph8 km/h from South | Mostly Cloudy | Mostly Cloudy |
| March 4 | 41°F5°C | 51°F11°C | 3 mph5 km/h from South | Drizzle | Drizzle |
| March 5 | 42°F5°C | 51°F11°C | 7 mph12 km/h from South | Mostly Cloudy | Mostly Cloudy |
| March 6 | 40°F5°C | 51°F10°C | 8 mph13 km/h from South | Mostly Cloudy | Drizzle |
Yes
Low of 40°F5°C, High of 58°F15°CWind: 4 mph7 km/h
Precipitation: None