No
you don't need a jacket based on the weather in Sunnyvale, CA, USA 1 second ago
64°F18°C & Clear
Wind is 9 mph14 km/h from the Northwest, gusting to 17 mph27 km/h
| May 22 | ||||
| 11pm | 62°F17°C | 8 mph12 km/h Northwest | Clear | |
| May 23 | ||||
| 12am | 59°F15°C | 5 mph8 km/h Northwest | Clear | |
| 1am | 56°F14°C | 4 mph7 km/h Northwest | Clear | |
| 2am | 55°F13°C | 3 mph5 km/h Northwest | Clear | |
| 3am | 53°F12°C | 3 mph4 km/h West | Clear | |
| 4am | 52°F11°C | 3 mph5 km/h Southwest | Mostly Clear | |
| 5am | 51°F11°C | 3 mph5 km/h South | Mostly Cloudy | |
| 6am | 51°F10°C | 3 mph5 km/h South | Mostly Cloudy | |
| 7am | 50°F10°C | 3 mph5 km/h Southwest | Mostly Cloudy | |
| 8am | 50°F10°C | 3 mph5 km/h Southwest | Mostly Cloudy | |
| 9am | 50°F10°C | 3 mph5 km/h Southwest | Mostly Cloudy | |
| 10am | 51°F11°C | 3 mph5 km/h Southwest | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 22 | 51°F11°C | 76°F25°C | 4 mph7 km/h from Northwest | Clear | Partly Cloudy |
| May 23 | 50°F10°C | 66°F19°C | 7 mph11 km/h from West | Partly Cloudy | Partly Cloudy |
| May 24 | 50°F10°C | 70°F21°C | 6 mph10 km/h from West | Mostly Clear | Partly Cloudy |
| May 25 | 50°F10°C | 70°F21°C | 7 mph11 km/h from Northwest | Partly Cloudy | Mostly Cloudy |
| May 26 | 52°F11°C | 71°F22°C | 8 mph13 km/h from Northwest | Partly Cloudy | Mostly Clear |
| May 27 | 50°F10°C | 80°F27°C | 4 mph7 km/h from Northwest | Clear | Mostly Clear |
| May 28 | 52°F11°C | 72°F22°C | 5 mph7 km/h from Northwest | Partly Cloudy | Partly Cloudy |
Yes
Low of 50°F10°C, High of 66°F19°CWind: 7 mph11 km/h
Precipitation: None