No
you don't need a jacket based on the weather in Greenwich, CT, USA 5 seconds ago
67°F19°C & Cloudy
Wind is 5 mph8 km/h from the Southeast, gusting to 12 mph20 km/h
| September 15 | ||||
| 10pm | 67°F19°C | 5 mph8 km/h Southeast | Cloudy | |
| 11pm | 65°F19°C | 5 mph8 km/h East | Cloudy | |
| September 16 | ||||
| 12am | 64°F18°C | 5 mph8 km/h East | Cloudy | |
| 1am | 63°F17°C | 4 mph7 km/h East | Cloudy | |
| 2am | 62°F17°C | 5 mph8 km/h Northeast | Cloudy | |
| 3am | 62°F17°C | 5 mph8 km/h Northeast | Cloudy | |
| 4am | 61°F16°C | 5 mph9 km/h Northeast | Cloudy | |
| 5am | 61°F16°C | 6 mph9 km/h Northeast | Cloudy | |
| 6am | 61°F16°C | 6 mph9 km/h Northeast | Cloudy | |
| 7am | 61°F16°C | 6 mph9 km/h Northeast | Cloudy | |
| 8am | 63°F17°C | 6 mph10 km/h Northeast | Mostly Cloudy | |
| 9am | 66°F19°C | 7 mph12 km/h Northeast | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 62°F16°C | 79°F26°C | 3 mph5 km/h from East | Mostly Clear | Cloudy |
| September 16 | 61°F16°C | 75°F24°C | 9 mph14 km/h from East | Mostly Cloudy | Mostly Cloudy |
| September 17 | 60°F16°C | 70°F21°C | 9 mph14 km/h from Northeast | Rain | Drizzle |
| September 18 | 63°F17°C | 76°F24°C | 4 mph6 km/h from North | Thunderstorms | Mostly Clear |
| September 19 | 62°F17°C | 79°F26°C | 7 mph11 km/h from Northwest | Mostly Clear | Mostly Clear |
| September 20 | 55°F13°C | 72°F22°C | 6 mph10 km/h from East | Mostly Clear | Mostly Clear |
| September 21 | 55°F13°C | 71°F22°C | 6 mph10 km/h from Southeast | Mostly Cloudy | Partly Cloudy |
No
Low of 61°F16°C, High of 75°F24°CWind: 9 mph14 km/h
Precipitation: None