Yes
you do need a jacket based on the weather in Arlington, WA, USA 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it!
54°F12°C & Mostly Clear
Wind is 3 mph5 km/h from the East, gusting to 7 mph12 km/h
| September 15 | ||||
| 2am | 54°F12°C | 3 mph5 km/h East | Mostly Clear | |
| 3am | 54°F12°C | 3 mph5 km/h Northeast | Cloudy | |
| 4am | 53°F12°C | 3 mph5 km/h Northeast | Partly Cloudy | |
| 5am | 52°F11°C | 3 mph5 km/h Northeast | Partly Cloudy | |
| 6am | 52°F11°C | 3 mph5 km/h Northeast | Partly Cloudy | |
| 7am | 52°F11°C | 3 mph5 km/h Northeast | Partly Cloudy | |
| 8am | 52°F11°C | 3 mph5 km/h Northeast | Partly Cloudy | |
| 9am | 52°F11°C | 2 mph4 km/h Northeast | Partly Cloudy | |
| 10am | 51°F10°C | 2 mph4 km/h Northeast | Mostly Clear | |
| 11am | 53°F12°C | 2 mph3 km/h Northeast | Mostly Clear | |
| 12pm | 57°F14°C | 1 mph2 km/h Northwest | Mostly Clear | |
| 1pm | 60°F16°C | 2 mph4 km/h West | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 14 | 54°F12°C | 61°F16°C | 1 mph2 km/h from Southwest | Rain | Drizzle |
| September 15 | 51°F10°C | 70°F21°C | 4 mph6 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 16 | 52°F11°C | 84°F29°C | 3 mph4 km/h from South | Clear | Clear |
| September 17 | 55°F13°C | 73°F23°C | 4 mph7 km/h from West | Mostly Clear | Mostly Clear |
| September 18 | 51°F10°C | 70°F21°C | 4 mph7 km/h from Northwest | Partly Cloudy | Mostly Clear |
| September 19 | 51°F10°C | 73°F23°C | 4 mph6 km/h from Northwest | Mostly Clear | Partly Cloudy |
| September 20 | 53°F11°C | 72°F22°C | 3 mph5 km/h from West | Partly Cloudy | Drizzle |
Yes
Low of 51°F11°C, High of 70°F21°CWind: 4 mph6 km/h
Precipitation: None