No
you don't need a jacket based on the weather in Chelmsford, MA, USA 1 second ago
62°F17°C & Partly Cloudy
Wind is 3 mph5 km/h from the Northwest, gusting to 8 mph13 km/h
| June 7 | ||||
| 11pm | 61°F16°C | 3 mph5 km/h Northwest | Partly Cloudy | |
| June 8 | ||||
| 12am | 60°F15°C | 4 mph6 km/h Northwest | Partly Cloudy | |
| 1am | 59°F15°C | 4 mph7 km/h Northwest | Mostly Clear | |
| 2am | 58°F15°C | 4 mph6 km/h Northwest | Mostly Cloudy | |
| 3am | 58°F14°C | 4 mph6 km/h Northwest | Mostly Cloudy | |
| 4am | 57°F14°C | 4 mph6 km/h Northwest | Mostly Cloudy | |
| 5am | 57°F14°C | 4 mph7 km/h Northwest | Cloudy | |
| 6am | 58°F14°C | 4 mph6 km/h North | Mostly Cloudy | |
| 7am | 61°F16°C | 4 mph6 km/h North | Cloudy | |
| 8am | 63°F17°C | 4 mph7 km/h Northeast | Cloudy | |
| 9am | 65°F18°C | 5 mph9 km/h Northeast | Cloudy | |
| 10am | 67°F20°C | 7 mph10 km/h Northeast | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| June 7 | 60°F15°C | 70°F21°C | 2 mph3 km/h from Northeast | Rain | Rain |
| June 8 | 57°F14°C | 72°F22°C | 7 mph11 km/h from East | Mostly Cloudy | Mostly Cloudy |
| June 9 | 55°F13°C | 68°F20°C | 8 mph14 km/h from East | Mostly Cloudy | Cloudy |
| June 10 | 55°F13°C | 66°F19°C | 4 mph6 km/h from East | Drizzle | Drizzle |
| June 11 | 57°F14°C | 77°F25°C | 9 mph14 km/h from West | Mostly Clear | Clear |
| June 12 | 61°F16°C | 80°F27°C | 12 mph20 km/h from West | Mostly Clear | Partly Cloudy |
| June 13 | 59°F15°C | 76°F25°C | 7 mph11 km/h from Northwest | Mostly Cloudy | Mostly Cloudy |
Yes
Low of 57°F14°C, High of 73°F23°CWind: 7 mph11 km/h
Precipitation: None