Yes
you do need a jacket based on the weather in Chelmsford, MA, USA 1 second ago
Why? Because it's colder than a polar bear's pyjamas!
26°F-3°C & Cloudy
Wind is 7 mph11 km/h from the South, gusting to 17 mph28 km/h
| January 31 | ||||
| 6am | 27°F-3°C | 7 mph11 km/h South | Cloudy | |
| 7am | 29°F-2°C | 7 mph12 km/h South | Cloudy | |
| 8am | 32°F-0°C | 8 mph13 km/h Southwest | Cloudy | |
| 9am | 34°F1°C | 7 mph11 km/h Southwest | Cloudy | |
| 10am | 38°F3°C | 8 mph13 km/h Southwest | Cloudy | |
| 11am | 40°F4°C | 7 mph11 km/h Southwest | Cloudy | |
| 12pm | 41°F5°C | 5 mph9 km/h Southwest | Cloudy | |
| 1pm | 41°F5°C | 5 mph8 km/h Southwest | Drizzle | |
| 2pm | 41°F5°C | 4 mph6 km/h Southwest | Drizzle | |
| 3pm | 40°F5°C | 3 mph5 km/h South | Drizzle | |
| 4pm | 39°F4°C | 2 mph4 km/h Southwest | Drizzle | |
| 5pm | 38°F4°C | 2 mph3 km/h South | Drizzle | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| January 31 | 22°F-5°C | 41°F5°C | 5 mph8 km/h from Southwest | Rain | Rain |
| February 1 | 10°F-12°C | 33°F1°C | 12 mph19 km/h from Northwest | Mostly Clear | Mostly Clear |
| February 2 | 7°F-14°C | 28°F-2°C | 4 mph6 km/h from Southeast | Mostly Cloudy | Snow |
| February 3 | 28°F-2°C | 44°F7°C | 7 mph11 km/h from Southwest | Cloudy | Partly Cloudy |
| February 4 | 24°F-5°C | 37°F3°C | 9 mph15 km/h from Northwest | Mostly Clear | Mostly Cloudy |
| February 5 | 22°F-5°C | 34°F1°C | 4 mph6 km/h from Southwest | Cloudy | Snow |
| February 6 | 26°F-3°C | 44°F7°C | 6 mph9 km/h from South | Cloudy | Drizzle |
Yes
Low of 10°F-13°C, High of 33°F1°CWind: 12 mph19 km/h
Precipitation: None