No
you don't need a jacket based on the weather in Portland, OR, USA 1 second ago
75°F24°C & Clear
Wind is 4 mph7 km/h from the East, gusting to 16 mph26 km/h
| September 17 | ||||
| 12am | 73°F23°C | 4 mph7 km/h Southeast | Clear | |
| 1am | 71°F22°C | 4 mph7 km/h Southeast | Clear | |
| 2am | 69°F21°C | 5 mph8 km/h South | Clear | |
| 3am | 67°F19°C | 5 mph8 km/h South | Clear | |
| 4am | 65°F18°C | 4 mph7 km/h South | Clear | |
| 5am | 63°F17°C | 2 mph4 km/h Northwest | Clear | |
| 6am | 61°F16°C | 4 mph6 km/h West | Clear | |
| 7am | 60°F16°C | 2 mph4 km/h West | Clear | |
| 8am | 59°F15°C | 2 mph3 km/h West | Clear | |
| 9am | 58°F15°C | 2 mph3 km/h West | Clear | |
| 10am | 58°F14°C | 1 mph2 km/h West | Clear | |
| 11am | 59°F15°C | 2 mph2 km/h Northwest | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 16 | 59°F15°C | 84°F29°C | 3 mph5 km/h from East | Clear | Clear |
| September 17 | 58°F14°C | 80°F27°C | 5 mph7 km/h from Northwest | Clear | Partly Cloudy |
| September 18 | 58°F14°C | 77°F25°C | 7 mph11 km/h from North | Mostly Clear | Clear |
| September 19 | 55°F13°C | 79°F26°C | 3 mph5 km/h from North | Clear | Clear |
| September 20 | 54°F12°C | 77°F25°C | 2 mph3 km/h from West | Mostly Clear | Drizzle |
| September 21 | 57°F14°C | 73°F23°C | 2 mph4 km/h from West | Drizzle | Mostly Clear |
| September 22 | 57°F14°C | 78°F25°C | 3 mph4 km/h from North | Mostly Clear | Mostly Clear |
Yes
Low of 57°F14°C, High of 81°F27°CWind: 5 mph7 km/h
Precipitation: None