No
you don't need a jacket based on the weather in Portland, OR, USA 4 minutes ago
73°F23°C & Clear
Wind is 6 mph10 km/h from the North, gusting to 14 mph23 km/h
| September 15 | ||||
| 9pm | 72°F22°C | 6 mph10 km/h North | Clear | |
| 10pm | 69°F21°C | 6 mph10 km/h North | Clear | |
| 11pm | 66°F19°C | 7 mph11 km/h North | Clear | |
| September 16 | ||||
| 12am | 64°F18°C | 6 mph10 km/h Northwest | Clear | |
| 1am | 62°F17°C | 6 mph9 km/h Northwest | Clear | |
| 2am | 60°F16°C | 5 mph8 km/h Northwest | Clear | |
| 3am | 60°F16°C | 4 mph7 km/h North | Clear | |
| 4am | 59°F15°C | 4 mph7 km/h North | Clear | |
| 5am | 59°F15°C | 4 mph7 km/h North | Clear | |
| 6am | 58°F15°C | 5 mph7 km/h Northeast | Mostly Clear | |
| 7am | 59°F15°C | 5 mph8 km/h Northeast | Mostly Clear | |
| 8am | 59°F15°C | 5 mph9 km/h Northeast | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 49°F9°C | 74°F23°C | 3 mph5 km/h from North | Mostly Clear | Clear |
| September 16 | 58°F15°C | 88°F31°C | 7 mph12 km/h from East | Clear | Clear |
| September 17 | 58°F14°C | 80°F27°C | 5 mph9 km/h from Northwest | Mostly Clear | Partly Cloudy |
| September 18 | 58°F14°C | 77°F25°C | 6 mph10 km/h from North | Partly Cloudy | Mostly Clear |
| September 19 | 57°F14°C | 79°F26°C | 3 mph5 km/h from North | Mostly Clear | Mostly Clear |
| September 20 | 55°F13°C | 75°F24°C | 2 mph4 km/h from Northwest | Partly Cloudy | Mostly Cloudy |
| September 21 | 58°F15°C | 73°F23°C | 4 mph7 km/h from Southwest | Drizzle | Mostly Clear |
Yes
Low of 58°F15°C, High of 88°F31°CWind: 7 mph12 km/h
Precipitation: None