Yes
you do need a jacket based on the weather in Irvine (Lower Peters Canyon), California, United States 1 second ago
Why? Because it's cool. Pleasantly cool, but cool.
57°F14°C & Mostly Clear
Wind is 2 mph3 km/h from the SW, gusting to 5 mph8 km/h
| April 20 | ||||
| 1am | 57°F14°C | 2 mph4 km/h SW | Mostly Clear | |
| 2am | 56°F14°C | 2 mph4 km/h S | Mostly Clear | |
| 3am | 56°F13°C | 2 mph4 km/h SE | Partly Cloudy | |
| 4am | 56°F13°C | 2 mph4 km/h S | Partly Cloudy | |
| 5am | 55°F13°C | 2 mph4 km/h S | Partly Cloudy | |
| 6am | 55°F13°C | 2 mph4 km/h S | Partly Cloudy | |
| 7am | 54°F12°C | 3 mph4 km/h SE | Partly Cloudy | |
| 8am | 54°F12°C | 3 mph4 km/h SE | Mostly Cloudy | |
| 9am | 53°F12°C | 2 mph4 km/h SE | Mostly Cloudy | |
| 10am | 54°F12°C | 2 mph4 km/h SE | Mostly Cloudy | |
| 11am | 56°F13°C | 2 mph3 km/h SE | Mostly Cloudy | |
| 12pm | 58°F15°C | 2 mph3 km/h SW | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| April 19 | 55°F13°C | 69°F21°C | 3 mph5 km/h from SW | Partly Cloudy | Partly Cloudy |
| April 20 | 53°F12°C | 73°F23°C | 5 mph8 km/h from SW | Mostly Clear | Mostly Clear |
| April 21 | 55°F13°C | 78°F26°C | 5 mph8 km/h from SW | Clear | Mostly Clear |
| April 22 | 57°F14°C | 74°F23°C | 6 mph10 km/h from SW | Mostly Clear | Mostly Cloudy |
| April 23 | 55°F13°C | 70°F21°C | 6 mph10 km/h from SW | Mostly Clear | Mostly Clear |
| April 24 | 51°F11°C | 68°F20°C | 7 mph11 km/h from SW | Mostly Clear | Mostly Cloudy |
| April 25 | 53°F12°C | 66°F19°C | 7 mph11 km/h from SW | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 54°F12°C, High of 73°F23°CWind: 5 mph8 km/h
Precipitation: None