No
you don't need a jacket based on the weather in Mountain View, CA 94040, USA 1 second ago
60°F16°C & Partly Cloudy
Wind is 3 mph5 km/h from the Southeast, gusting to 8 mph13 km/h
| December 22 | ||||
| 2pm | 61°F16°C | 4 mph6 km/h Southeast | Mostly Cloudy | |
| 3pm | 64°F18°C | 3 mph5 km/h South | Mostly Cloudy | |
| 4pm | 66°F19°C | 4 mph6 km/h Southeast | Mostly Cloudy | |
| 5pm | 66°F19°C | 3 mph6 km/h South | Partly Cloudy | |
| 6pm | 65°F19°C | 3 mph5 km/h South | Mostly Cloudy | |
| 7pm | 64°F18°C | 2 mph4 km/h Southwest | Mostly Cloudy | |
| 8pm | 62°F17°C | 3 mph5 km/h South | Cloudy | |
| 9pm | 61°F16°C | 3 mph5 km/h South | Cloudy | |
| 10pm | 59°F15°C | 4 mph6 km/h South | Cloudy | |
| 11pm | 59°F15°C | 5 mph8 km/h South | Cloudy | |
| December 23 | ||||
| 12am | 59°F15°C | 5 mph8 km/h South | Drizzle | |
| 1am | 59°F15°C | 5 mph8 km/h South | Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 22 | 54°F12°C | 66°F19°C | 3 mph4 km/h from South | Mostly Cloudy | Drizzle |
| December 23 | 55°F13°C | 66°F19°C | 3 mph5 km/h from South | Mostly Cloudy | Rain |
| December 24 | 47°F8°C | 60°F15°C | 7 mph12 km/h from West | Rain | Partly Cloudy |
| December 25 | 43°F6°C | 56°F13°C | 3 mph4 km/h from Northwest | Mostly Cloudy | Cloudy |
| December 26 | 45°F7°C | 60°F15°C | 4 mph6 km/h from Southwest | Cloudy | Drizzle |
| December 27 | 50°F10°C | 60°F15°C | 5 mph9 km/h from South | Drizzle | Drizzle |
| December 28 | 53°F12°C | 63°F17°C | 3 mph5 km/h from South | Drizzle | Rain |
Yes
Low of 55°F13°C, High of 66°F19°CWind: 3 mph5 km/h
Precipitation: None