No
you don't need a jacket based on the weather in Mercer Island, WA 98040, USA 1 second ago
60°F15°C & Partly Cloudy
Wind is 4 mph6 km/h from the SW, gusting to 9 mph15 km/h
| April 26 | ||||
| 10pm | 59°F15°C | 4 mph7 km/h SW | Partly Cloudy | |
| 11pm | 56°F13°C | 4 mph6 km/h S | Mostly Cloudy | |
| April 27 | ||||
| 12am | 54°F12°C | 4 mph6 km/h S | Mostly Cloudy | |
| 1am | 53°F11°C | 4 mph6 km/h S | Mostly Cloudy | |
| 2am | 52°F11°C | 5 mph8 km/h S | Cloudy | |
| 3am | 51°F11°C | 6 mph9 km/h S | Mostly Cloudy | |
| 4am | 51°F10°C | 6 mph10 km/h S | Mostly Cloudy | |
| 5am | 50°F10°C | 7 mph11 km/h S | Mostly Cloudy | |
| 6am | 50°F10°C | 7 mph12 km/h S | Cloudy | |
| 7am | 49°F10°C | 8 mph12 km/h S | Cloudy | |
| 8am | 49°F9°C | 9 mph14 km/h S | Cloudy | |
| 9am | 48°F9°C | 9 mph15 km/h S | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 26 | 49°F9°C | 62°F17°C | 3 mph5 km/h from SW | Mostly Cloudy | Drizzle |
| April 27 | 48°F9°C | 53°F12°C | 9 mph15 km/h from S | Drizzle | Cloudy |
| April 28 | 45°F7°C | 54°F12°C | 11 mph18 km/h from SW | Drizzle | Drizzle |
| April 29 | 42°F5°C | 53°F11°C | 6 mph9 km/h from SW | Drizzle | Mostly Cloudy |
| April 30 | 41°F5°C | 56°F14°C | 4 mph6 km/h from W | Mostly Cloudy | Mostly Clear |
| May 1 | 41°F5°C | 61°F16°C | 3 mph4 km/h from NW | Partly Cloudy | Partly Cloudy |
| May 2 | 44°F7°C | 63°F17°C | 5 mph9 km/h from N | Mostly Cloudy | Mostly Clear |
Yes
Low of 48°F9°C, High of 54°F12°CWind: 9 mph15 km/h
Precipitation: 74% rain