No
you don't need a jacket based on the weather in Pasadena, CA, USA 2 seconds ago
69°F20°C & Cloudy
Wind is 3 mph5 km/h from the South, gusting to 7 mph12 km/h
| September 18 | ||||
| 9am | 69°F20°C | 3 mph5 km/h Southwest | Thunderstorms | |
| 10am | 68°F20°C | 4 mph7 km/h North | Thunderstorms | |
| 11am | 69°F21°C | 3 mph4 km/h North | Thunderstorms | |
| 12pm | 73°F23°C | 4 mph7 km/h East | Mostly Cloudy | |
| 1pm | 75°F24°C | 6 mph9 km/h Southeast | Partly Cloudy | |
| 2pm | 77°F25°C | 6 mph9 km/h Southeast | Mostly Cloudy | |
| 3pm | 78°F26°C | 6 mph10 km/h Southeast | Cloudy | |
| 4pm | 80°F27°C | 5 mph8 km/h Southeast | Mostly Cloudy | |
| 5pm | 81°F27°C | 6 mph9 km/h South | Partly Cloudy | |
| 6pm | 83°F28°C | 7 mph11 km/h South | Partly Cloudy | |
| 7pm | 82°F28°C | 7 mph12 km/h South | Mostly Clear | |
| 8pm | 81°F27°C | 7 mph11 km/h South | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 68°F20°C | 83°F28°C | 5 mph9 km/h from South | Thunderstorms | Drizzle |
| September 19 | 67°F19°C | 83°F29°C | 4 mph7 km/h from South | Mostly Clear | Clear |
| September 20 | 65°F18°C | 86°F30°C | 4 mph7 km/h from Southwest | Clear | Clear |
| September 21 | 65°F18°C | 86°F30°C | 4 mph7 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 22 | 69°F21°C | 89°F32°C | 4 mph7 km/h from Southwest | Mostly Clear | Mostly Clear |
| September 23 | 69°F21°C | 89°F32°C | 4 mph7 km/h from Southwest | Clear | Mostly Clear |
| September 24 | 68°F20°C | 88°F31°C | 4 mph7 km/h from Southwest | Clear | Clear |
No
Low of 67°F20°C, High of 83°F29°CWind: 4 mph7 km/h
Precipitation: 15% rain