Yes
you do need a jacket based on the weather in Seattle, WA 98117, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool.
50°F10°C & Cloudy
Wind is 2 mph4 km/h from the NE, gusting to 5 mph8 km/h
| September 21 | ||||
| 11am | 51°F10°C | 2 mph4 km/h NE | Cloudy | |
| 12pm | 53°F12°C | 2 mph4 km/h NE | Cloudy | |
| 1pm | 56°F13°C | 2 mph4 km/h N | Mostly Cloudy | |
| 2pm | 59°F15°C | 3 mph5 km/h N | Partly Cloudy | |
| 3pm | 62°F17°C | 4 mph7 km/h N | Mostly Clear | |
| 4pm | 65°F18°C | 5 mph8 km/h N | Mostly Clear | |
| 5pm | 66°F19°C | 5 mph9 km/h N | Mostly Clear | |
| 6pm | 67°F20°C | 6 mph10 km/h N | Mostly Clear | |
| 7pm | 68°F20°C | 6 mph10 km/h N | Mostly Clear | |
| 8pm | 67°F19°C | 6 mph10 km/h N | Clear | |
| 9pm | 65°F18°C | 6 mph10 km/h N | Clear | |
| 10pm | 62°F16°C | 5 mph8 km/h N | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 21 | 49°F9°C | 68°F20°C | 4 mph7 km/h from N | Partly Cloudy | Partly Cloudy |
| September 22 | 50°F10°C | 68°F20°C | 2 mph4 km/h from S | Mostly Cloudy | Mostly Cloudy |
| September 23 | 56°F13°C | 70°F21°C | 4 mph6 km/h from SE | Mostly Cloudy | Mostly Clear |
| September 24 | 56°F13°C | 73°F23°C | 5 mph9 km/h from N | Mostly Clear | Partly Cloudy |
| September 25 | 55°F13°C | 67°F19°C | 7 mph11 km/h from S | Drizzle | Drizzle |
| September 26 | 50°F10°C | 65°F19°C | 7 mph11 km/h from S | Mostly Cloudy | Mostly Cloudy |
| September 27 | 50°F10°C | 63°F17°C | 11 mph17 km/h from SW | Partly Cloudy | Partly Cloudy |
Yes
Low of 50°F10°C, High of 68°F20°CWind: 2 mph4 km/h
Precipitation: None