No
you don't need a jacket based on the weather in Atherton, CA 94027, USA 1 second ago
61°F16°C & Mostly Cloudy
Wind is 3 mph5 km/h from the South, gusting to 4 mph7 km/h
| September 18 | ||||
| 10am | 61°F16°C | 3 mph5 km/h South | Mostly Cloudy | |
| 11am | 63°F17°C | 2 mph4 km/h South | Cloudy | |
| 12pm | 66°F19°C | 2 mph4 km/h West | Cloudy | |
| 1pm | 70°F21°C | 3 mph5 km/h North | Cloudy | |
| 2pm | 72°F22°C | 5 mph8 km/h North | Mostly Cloudy | |
| 3pm | 74°F24°C | 6 mph9 km/h North | Cloudy | |
| 4pm | 77°F25°C | 5 mph8 km/h Northwest | Cloudy | |
| 5pm | 78°F25°C | 5 mph8 km/h West | Mostly Cloudy | |
| 6pm | 77°F25°C | 6 mph9 km/h West | Mostly Cloudy | |
| 7pm | 75°F24°C | 6 mph9 km/h West | Mostly Cloudy | |
| 8pm | 73°F23°C | 6 mph9 km/h Northwest | Mostly Cloudy | |
| 9pm | 71°F22°C | 4 mph7 km/h West | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 18 | 61°F16°C | 78°F25°C | 4 mph7 km/h from Northwest | Cloudy | Mostly Cloudy |
| September 19 | 61°F16°C | 75°F24°C | 4 mph6 km/h from Northwest | Mostly Clear | Partly Cloudy |
| September 20 | 59°F15°C | 77°F25°C | 5 mph8 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 21 | 58°F14°C | 77°F25°C | 5 mph7 km/h from Northwest | Mostly Clear | Clear |
| September 22 | 60°F16°C | 86°F30°C | 4 mph6 km/h from Northwest | Clear | Mostly Clear |
| September 23 | 63°F17°C | 80°F27°C | 3 mph5 km/h from West | Mostly Clear | Partly Cloudy |
| September 24 | 61°F16°C | 76°F25°C | 4 mph7 km/h from Northwest | Mostly Clear | Mostly Clear |
No
Low of 61°F16°C, High of 74°F24°CWind: 4 mph6 km/h
Precipitation: None