No
you don't need a jacket based on the weather in Waltham, MA, USA 1 second ago
69°F20°C & Cloudy
Wind is 6 mph9 km/h from the Northeast, gusting to 11 mph17 km/h
| September 15 | ||||
| 11am | 69°F21°C | 6 mph9 km/h Northeast | Mostly Cloudy | |
| 12pm | 73°F23°C | 6 mph9 km/h Northeast | Mostly Cloudy | |
| 1pm | 74°F23°C | 7 mph12 km/h Northeast | Partly Cloudy | |
| 2pm | 75°F24°C | 7 mph12 km/h East | Partly Cloudy | |
| 3pm | 74°F24°C | 8 mph13 km/h East | Mostly Clear | |
| 4pm | 73°F23°C | 8 mph12 km/h East | Partly Cloudy | |
| 5pm | 71°F22°C | 7 mph12 km/h East | Mostly Cloudy | |
| 6pm | 69°F20°C | 7 mph11 km/h East | Mostly Cloudy | |
| 7pm | 66°F19°C | 5 mph8 km/h East | Partly Cloudy | |
| 8pm | 64°F18°C | 4 mph6 km/h East | Partly Cloudy | |
| 9pm | 62°F17°C | 3 mph5 km/h Southeast | Mostly Cloudy | |
| 10pm | 61°F16°C | 3 mph4 km/h Southeast | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 15 | 56°F14°C | 75°F24°C | 6 mph10 km/h from Northeast | Partly Cloudy | Partly Cloudy |
| September 16 | 56°F13°C | 74°F24°C | 5 mph8 km/h from East | Partly Cloudy | Mostly Cloudy |
| September 17 | 55°F13°C | 72°F22°C | 4 mph6 km/h from East | Cloudy | Cloudy |
| September 18 | 61°F16°C | 76°F24°C | 3 mph6 km/h from Northwest | Mostly Cloudy | Mostly Clear |
| September 19 | 57°F14°C | 78°F26°C | 7 mph10 km/h from Northwest | Mostly Clear | Clear |
| September 20 | 50°F10°C | 69°F20°C | 4 mph6 km/h from East | Clear | Mostly Clear |
| September 21 | 49°F10°C | 73°F23°C | 6 mph9 km/h from South | Mostly Clear | Mostly Clear |
Yes
Low of 56°F14°C, High of 74°F24°CWind: 5 mph8 km/h
Precipitation: None