No
you don't need a jacket based on the weather in Mountain View, CA 94040, USA 1 second ago
65°F18°C & Mostly Clear
Wind is 2 mph4 km/h from the North, gusting to 6 mph10 km/h
| September 7 | ||||
| 12am | 64°F18°C | 3 mph4 km/h North | Mostly Clear | |
| 1am | 63°F17°C | 3 mph4 km/h East | Mostly Clear | |
| 2am | 61°F16°C | 2 mph4 km/h South | Mostly Clear | |
| 3am | 60°F16°C | 2 mph3 km/h South | Mostly Clear | |
| 4am | 59°F15°C | 2 mph3 km/h South | Mostly Clear | |
| 5am | 59°F15°C | 2 mph3 km/h Northwest | Mostly Cloudy | |
| 6am | 58°F15°C | 2 mph3 km/h Southeast | Partly Cloudy | |
| 7am | 57°F14°C | 2 mph3 km/h Southwest | Partly Cloudy | |
| 8am | 57°F14°C | 2 mph3 km/h Southwest | Partly Cloudy | |
| 9am | 57°F14°C | 2 mph3 km/h Southwest | Partly Cloudy | |
| 10am | 57°F14°C | 2 mph3 km/h South | Partly Cloudy | |
| 11am | 59°F15°C | 2 mph3 km/h South | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 6 | 60°F16°C | 78°F26°C | 3 mph4 km/h from North | Mostly Clear | Mostly Clear |
| September 7 | 57°F14°C | 78°F26°C | 5 mph8 km/h from Northwest | Partly Cloudy | Mostly Clear |
| September 8 | 58°F15°C | 78°F25°C | 5 mph8 km/h from West | Mostly Clear | Mostly Cloudy |
| September 9 | 61°F16°C | 73°F23°C | 6 mph9 km/h from West | Mostly Cloudy | Mostly Cloudy |
| September 10 | 59°F15°C | 72°F22°C | 6 mph9 km/h from West | Partly Cloudy | Mostly Cloudy |
| September 11 | 58°F15°C | 76°F24°C | 5 mph8 km/h from West | Mostly Clear | Partly Cloudy |
| September 12 | 57°F14°C | 74°F23°C | 5 mph8 km/h from Northwest | Mostly Clear | Partly Cloudy |
Yes
Low of 56°F14°C, High of 78°F26°CWind: 5 mph8 km/h
Precipitation: None