No
you don't need a jacket based on the weather in Groton, MA, USA 1 second ago
71°F22°C & Cloudy
Wind is 4 mph7 km/h from the Southeast, gusting to 11 mph17 km/h
| July 9 | ||||
| 10pm | 69°F21°C | 3 mph5 km/h Southeast | Drizzle | |
| 11pm | 68°F20°C | 4 mph6 km/h Southeast | Drizzle | |
| July 10 | ||||
| 12am | 68°F20°C | 3 mph5 km/h Southeast | Drizzle | |
| 1am | 67°F20°C | 2 mph3 km/h East | Drizzle | |
| 2am | 67°F19°C | 2 mph3 km/h East | Drizzle | |
| 3am | 67°F19°C | 2 mph4 km/h East | Drizzle | |
| 4am | 67°F19°C | 3 mph4 km/h East | Drizzle | |
| 5am | 67°F19°C | 3 mph5 km/h East | Drizzle | |
| 6am | 67°F19°C | 3 mph5 km/h East | Drizzle | |
| 7am | 67°F19°C | 3 mph5 km/h East | Rain | |
| 8am | 67°F20°C | 4 mph6 km/h East | Rain | |
| 9am | 68°F20°C | 5 mph7 km/h East | Rain | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| July 9 | 68°F20°C | 76°F24°C | 1 mph2 km/h from East | Heavy Rain | Rain |
| July 10 | 66°F19°C | 73°F23°C | 5 mph9 km/h from East | Rain | Drizzle |
| July 11 | 64°F18°C | 85°F29°C | 3 mph5 km/h from South | Partly Cloudy | Partly Cloudy |
| July 12 | 67°F19°C | 84°F29°C | 4 mph7 km/h from Southeast | Mostly Cloudy | Mostly Cloudy |
| July 13 | 66°F19°C | 83°F29°C | 6 mph9 km/h from Southeast | Partly Cloudy | Mostly Clear |
| July 14 | 65°F18°C | 84°F29°C | 6 mph9 km/h from South | Partly Cloudy | Drizzle |
| July 15 | 68°F20°C | 87°F31°C | 4 mph7 km/h from Southwest | Drizzle | Partly Cloudy |
No
Low of 66°F19°C, High of 73°F23°CWind: 5 mph9 km/h
Precipitation: 86% rain