Yes
you do need a jacket based on the weather in Seattle, WA, USA 1 second ago
Why? Because it's cold. simple as that.
45°F7°C & Clear
Wind is 5 mph8 km/h from the NE, gusting to 13 mph21 km/h
| April 18 | ||||
| 12pm | 48°F9°C | 7 mph11 km/h N | Clear | |
| 1pm | 51°F11°C | 8 mph12 km/h N | Clear | |
| 2pm | 55°F13°C | 9 mph14 km/h N | Clear | |
| 3pm | 57°F14°C | 10 mph16 km/h N | Clear | |
| 4pm | 59°F15°C | 11 mph18 km/h N | Clear | |
| 5pm | 60°F16°C | 12 mph19 km/h N | Clear | |
| 6pm | 61°F16°C | 13 mph20 km/h N | Clear | |
| 7pm | 62°F17°C | 13 mph21 km/h N | Clear | |
| 8pm | 61°F16°C | 13 mph20 km/h N | Clear | |
| 9pm | 60°F16°C | 12 mph20 km/h N | Clear | |
| 10pm | 58°F15°C | 11 mph17 km/h N | Clear | |
| 11pm | 55°F13°C | 9 mph15 km/h N | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 18 | 40°F4°C | 62°F17°C | 10 mph16 km/h from N | Clear | Clear |
| April 19 | 42°F5°C | 67°F19°C | 7 mph11 km/h from NE | Clear | Clear |
| April 20 | 45°F7°C | 68°F20°C | 9 mph15 km/h from S | Partly Cloudy | Mostly Clear |
| April 21 | 44°F7°C | 57°F14°C | 8 mph12 km/h from SW | Partly Cloudy | Partly Cloudy |
| April 22 | 43°F6°C | 61°F16°C | 8 mph13 km/h from N | Partly Cloudy | Mostly Clear |
| April 23 | 45°F7°C | 66°F19°C | 9 mph14 km/h from N | Partly Cloudy | Partly Cloudy |
| April 24 | 47°F9°C | 65°F18°C | 5 mph8 km/h from W | Partly Cloudy | Mostly Cloudy |
Yes
Low of 42°F6°C, High of 67°F20°CWind: 7 mph11 km/h
Precipitation: None