Yes
you do need a jacket based on the weather in Arlington, Washington, United States 1 second ago
Why? Because it's bitterly cold.
45°F7°C & Mostly Clear
Wind is 2 mph3 km/h from the NE, gusting to 3 mph5 km/h
| September 21 | ||||
| 8am | 45°F7°C | 2 mph3 km/h NE | Partly Cloudy | |
| 9am | 45°F7°C | 2 mph4 km/h NE | Mostly Cloudy | |
| 10am | 45°F7°C | 2 mph3 km/h E | Mostly Cloudy | |
| 11am | 47°F9°C | 2 mph3 km/h E | Mostly Cloudy | |
| 12pm | 52°F11°C | 1 mph2 km/h SE | Mostly Cloudy | |
| 1pm | 57°F14°C | 1 mph2 km/h W | Mostly Cloudy | |
| 2pm | 61°F16°C | 2 mph3 km/h W | Mostly Cloudy | |
| 3pm | 64°F18°C | 3 mph5 km/h W | Partly Cloudy | |
| 4pm | 66°F19°C | 4 mph6 km/h W | Partly Cloudy | |
| 5pm | 68°F20°C | 4 mph6 km/h W | Mostly Clear | |
| 6pm | 69°F20°C | 4 mph7 km/h W | Mostly Clear | |
| 7pm | 69°F20°C | 4 mph7 km/h W | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 21 | 45°F7°C | 69°F20°C | 3 mph5 km/h from W | Partly Cloudy | Mostly Cloudy |
| September 22 | 48°F9°C | 69°F20°C | 3 mph4 km/h from W | Mostly Cloudy | Cloudy |
| September 23 | 56°F13°C | 70°F21°C | 3 mph4 km/h from S | Mostly Cloudy | Mostly Clear |
| September 24 | 54°F12°C | 76°F24°C | 3 mph5 km/h from W | Mostly Clear | Partly Cloudy |
| September 25 | 55°F13°C | 67°F19°C | 5 mph8 km/h from S | Rain | Rain |
| September 26 | 51°F10°C | 67°F19°C | 5 mph7 km/h from SE | Drizzle | Mostly Cloudy |
| September 27 | 49°F10°C | 62°F17°C | 4 mph7 km/h from SW | Drizzle | Mostly Cloudy |
Yes
Low of 48°F9°C, High of 69°F21°CWind: 3 mph4 km/h
Precipitation: 27% rain