Yes
you do need a jacket based on the weather in Walnut Creek (Overlook), California, United States 1 second ago
Why? Because it's quite chilly!
40°F4°C & Mostly Clear
Wind is 4 mph7 km/h from the Southwest, gusting to 6 mph9 km/h
| March 19 | ||||
| 9am | 40°F4°C | 5 mph7 km/h Southwest | Mostly Cloudy | |
| 10am | 40°F4°C | 4 mph7 km/h Southwest | Mostly Cloudy | |
| 11am | 41°F5°C | 4 mph7 km/h Southwest | Partly Cloudy | |
| 12pm | 46°F8°C | 3 mph5 km/h Southwest | Cloudy | |
| 1pm | 51°F11°C | 3 mph5 km/h Southwest | Cloudy | |
| 2pm | 55°F13°C | 4 mph6 km/h Southwest | Cloudy | |
| 3pm | 57°F14°C | 6 mph10 km/h Southwest | Cloudy | |
| 4pm | 57°F14°C | 7 mph11 km/h Southwest | Cloudy | |
| 5pm | 58°F14°C | 9 mph14 km/h Southwest | Cloudy | |
| 6pm | 57°F14°C | 10 mph16 km/h Southwest | Cloudy | |
| 7pm | 57°F14°C | 10 mph16 km/h Southwest | Cloudy | |
| 8pm | 56°F13°C | 9 mph15 km/h Southwest | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| March 19 | 40°F4°C | 58°F14°C | 7 mph11 km/h from Southwest | Mostly Cloudy | Mostly Cloudy |
| March 20 | 44°F7°C | 61°F16°C | 5 mph7 km/h from Northwest | Partly Cloudy | Partly Cloudy |
| March 21 | 42°F5°C | 63°F17°C | 5 mph9 km/h from West | Partly Cloudy | Mostly Cloudy |
| March 22 | 45°F7°C | 66°F19°C | 6 mph9 km/h from West | Mostly Cloudy | Partly Cloudy |
| March 23 | 46°F8°C | 72°F22°C | 4 mph6 km/h from West | Mostly Clear | Clear |
| March 24 | 50°F10°C | 78°F26°C | 5 mph7 km/h from Northeast | Clear | Clear |
| March 25 | 55°F13°C | 76°F24°C | 4 mph6 km/h from West | Clear | Partly Cloudy |
Yes
Low of 45°F7°C, High of 61°F16°CWind: 5 mph7 km/h
Precipitation: None