Yes
you do need a jacket based on the weather in Sammamish, WA, USA 1 second ago
Why? Because it's not very warm out!
57°F14°C & Mostly Clear
Wind is 3 mph5 km/h from the North, gusting to 6 mph9 km/h
| February 28 | ||||
| 8pm | 56°F14°C | 3 mph5 km/h North | Clear | |
| 9pm | 52°F11°C | 4 mph6 km/h North | Clear | |
| 10pm | 49°F10°C | 3 mph4 km/h North | Clear | |
| 11pm | 47°F8°C | 2 mph3 km/h Northwest | Mostly Clear | |
| March 1 | ||||
| 12am | 46°F8°C | 2 mph3 km/h East | Mostly Clear | |
| 1am | 45°F7°C | 1 mph2 km/h East | Mostly Clear | |
| 2am | 44°F7°C | 2 mph3 km/h East | Mostly Clear | |
| 3am | 43°F6°C | 2 mph4 km/h Southeast | Partly Cloudy | |
| 4am | 42°F6°C | 3 mph4 km/h Southeast | Mostly Clear | |
| 5am | 42°F5°C | 3 mph4 km/h Southeast | Partly Cloudy | |
| 6am | 41°F5°C | 3 mph4 km/h Southeast | Partly Cloudy | |
| 7am | 40°F5°C | 3 mph4 km/h Southeast | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| February 28 | 38°F3°C | 61°F16°C | 2 mph3 km/h from Northwest | Mostly Clear | Mostly Clear |
| March 1 | 39°F4°C | 60°F16°C | 3 mph6 km/h from Southwest | Mostly Clear | Cloudy |
| March 2 | 45°F7°C | 51°F10°C | 2 mph4 km/h from Southwest | Cloudy | Drizzle |
| March 3 | 42°F6°C | 48°F9°C | 4 mph7 km/h from South | Cloudy | Cloudy |
| March 4 | 39°F4°C | 52°F11°C | 2 mph4 km/h from South | Cloudy | Drizzle |
| March 5 | 40°F5°C | 50°F10°C | 5 mph8 km/h from South | Cloudy | Rain |
| March 6 | 39°F4°C | 50°F10°C | 5 mph9 km/h from South | Mostly Cloudy | Cloudy |
Yes
Low of 39°F4°C, High of 60°F16°CWind: 3 mph6 km/h
Precipitation: None