No
you don't need a jacket based on the weather in Walnut Creek, CA, USA 1 second ago
78°F26°C & Clear
Wind is 9 mph15 km/h from the Southwest, gusting to 14 mph22 km/h
| June 25 | ||||
| 7pm | 78°F26°C | 9 mph15 km/h Southwest | Clear | |
| 8pm | 77°F25°C | 10 mph16 km/h Southwest | Clear | |
| 9pm | 75°F24°C | 9 mph15 km/h Southwest | Clear | |
| 10pm | 72°F22°C | 9 mph15 km/h Southwest | Clear | |
| 11pm | 69°F20°C | 9 mph14 km/h Southwest | Clear | |
| June 26 | ||||
| 12am | 64°F18°C | 8 mph13 km/h Southwest | Clear | |
| 1am | 61°F16°C | 8 mph13 km/h Southwest | Clear | |
| 2am | 59°F15°C | 8 mph12 km/h Southwest | Clear | |
| 3am | 58°F14°C | 8 mph12 km/h Southwest | Clear | |
| 4am | 57°F14°C | 8 mph12 km/h Southwest | Mostly Clear | |
| 5am | 56°F13°C | 8 mph12 km/h Southwest | Mostly Clear | |
| 6am | 56°F13°C | 7 mph12 km/h Southwest | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| June 25 | 53°F12°C | 78°F26°C | 8 mph12 km/h from Southwest | Clear | Mostly Clear |
| June 26 | 54°F12°C | 78°F25°C | 7 mph12 km/h from Southwest | Clear | Clear |
| June 27 | 53°F12°C | 85°F29°C | 5 mph9 km/h from Southwest | Clear | Clear |
| June 28 | 57°F14°C | 84°F29°C | 7 mph11 km/h from Southwest | Clear | Clear |
| June 29 | 55°F13°C | 82°F28°C | 7 mph11 km/h from Southwest | Clear | Partly Cloudy |
| June 30 | 55°F13°C | 78°F25°C | 8 mph13 km/h from Southwest | Mostly Clear | Partly Cloudy |
| July 1 | 54°F12°C | 78°F26°C | 8 mph13 km/h from Southwest | Clear | Mostly Clear |
Yes
Low of 54°F12°C, High of 78°F26°CWind: 7 mph12 km/h
Precipitation: None