Yes
you do need a jacket based on the weather in Pasadena, CA, USA 1 second ago
Why? Because just cool enough for a jacket, but not warm enough to ditch it!
54°F12°C & Clear
Wind is 4 mph7 km/h from the Northwest, gusting to 6 mph9 km/h
| January 12 | ||||
| 9pm | 54°F12°C | 5 mph7 km/h Northwest | Clear | |
| 10pm | 51°F11°C | 4 mph7 km/h Northwest | Clear | |
| 11pm | 49°F10°C | 3 mph5 km/h Northeast | Clear | |
| January 13 | ||||
| 12am | 48°F9°C | 4 mph7 km/h North | Clear | |
| 1am | 47°F8°C | 5 mph7 km/h Northeast | Clear | |
| 2am | 46°F8°C | 4 mph7 km/h North | Clear | |
| 3am | 46°F8°C | 6 mph10 km/h North | Clear | |
| 4am | 46°F8°C | 5 mph9 km/h North | Clear | |
| 5am | 45°F7°C | 6 mph9 km/h North | Clear | |
| 6am | 45°F7°C | 6 mph9 km/h North | Clear | |
| 7am | 44°F7°C | 5 mph9 km/h Northeast | Clear | |
| 8am | 44°F7°C | 6 mph10 km/h North | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| January 12 | 46°F8°C | 66°F19°C | 4 mph6 km/h from Southwest | Clear | Clear |
| January 13 | 43°F6°C | 61°F16°C | 6 mph10 km/h from Northeast | Clear | Clear |
| January 14 | 44°F7°C | 65°F18°C | 6 mph9 km/h from Northeast | Clear | Clear |
| January 15 | 47°F8°C | 68°F20°C | 4 mph7 km/h from Northeast | Clear | Clear |
| January 16 | 48°F9°C | 67°F20°C | 3 mph5 km/h from Southwest | Clear | Mostly Clear |
| January 17 | 44°F7°C | 59°F15°C | 4 mph6 km/h from South | Clear | Partly Cloudy |
| January 18 | 45°F7°C | 54°F12°C | 4 mph6 km/h from South | Partly Cloudy | Partly Cloudy |
Yes
Low of 43°F6°C, High of 62°F17°CWind: 6 mph10 km/h
Precipitation: None