No
you don't need a jacket based on the weather in Mountain View, CA 94043, USA 1 second ago
59°F15°C & Mostly Clear
Wind is 1 mph2 km/h from the W, gusting to 4 mph7 km/h
| September 22 | ||||
| 3am | 59°F15°C | 2 mph3 km/h SW | Mostly Clear | |
| 4am | 58°F15°C | 2 mph4 km/h S | Mostly Clear | |
| 5am | 58°F15°C | 2 mph3 km/h SE | Mostly Clear | |
| 6am | 58°F14°C | 1 mph2 km/h W | Mostly Clear | |
| 7am | 57°F14°C | 2 mph3 km/h NW | Partly Cloudy | |
| 8am | 56°F14°C | 2 mph4 km/h NW | Partly Cloudy | |
| 9am | 56°F13°C | 2 mph3 km/h NW | Partly Cloudy | |
| 10am | 55°F13°C | 2 mph3 km/h NW | Partly Cloudy | |
| 11am | 56°F13°C | 1 mph2 km/h NW | Partly Cloudy | |
| 12pm | 59°F15°C | 1 mph2 km/h NE | Partly Cloudy | |
| 1pm | 62°F17°C | 2 mph3 km/h N | Mostly Clear | |
| 2pm | 66°F19°C | 3 mph4 km/h N | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 21 | 56°F13°C | 77°F25°C | 4 mph7 km/h from NW | Mostly Clear | Mostly Clear |
| September 22 | 55°F13°C | 81°F27°C | 4 mph7 km/h from NW | Mostly Clear | Clear |
| September 23 | 57°F14°C | 89°F31°C | 3 mph5 km/h from NW | Clear | Clear |
| September 24 | 63°F17°C | 87°F31°C | 5 mph8 km/h from NW | Clear | Clear |
| September 25 | 56°F13°C | 75°F24°C | 6 mph9 km/h from NW | Clear | Mostly Clear |
| September 26 | 54°F12°C | 76°F25°C | 5 mph8 km/h from NW | Clear | Mostly Clear |
| September 27 | 53°F11°C | 79°F26°C | 5 mph7 km/h from NW | Mostly Clear | Partly Cloudy |
Yes
Low of 55°F13°C, High of 82°F28°CWind: 4 mph7 km/h
Precipitation: None