Yes
you do need a jacket based on the weather in Marylebone, London, UK 1 second ago
Why? Because it's not very warm out.
58°F15°C & Mostly Cloudy
Wind is 5 mph8 km/h from the SE, gusting to 14 mph22 km/h
| September 8 | ||||
| 3am | 58°F15°C | 5 mph8 km/h SE | Drizzle | |
| 4am | 60°F16°C | 6 mph10 km/h SE | Drizzle | |
| 5am | 62°F17°C | 6 mph9 km/h SE | Rain | |
| 6am | 64°F18°C | 6 mph10 km/h SE | Drizzle | |
| 7am | 65°F18°C | 6 mph9 km/h S | Rain | |
| 8am | 66°F19°C | 5 mph8 km/h SE | Mostly Cloudy | |
| 9am | 67°F19°C | 5 mph9 km/h S | Drizzle | |
| 10am | 67°F19°C | 5 mph8 km/h S | Partly Cloudy | |
| 11am | 67°F19°C | 4 mph7 km/h SW | Mostly Cloudy | |
| 12pm | 66°F19°C | 4 mph7 km/h SW | Mostly Cloudy | |
| 1pm | 64°F18°C | 5 mph9 km/h SW | Mostly Cloudy | |
| 2pm | 63°F17°C | 4 mph6 km/h SW | Partly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 7 | 57°F14°C | 67°F19°C | 5 mph9 km/h from S | Rain | Drizzle |
| September 8 | 53°F12°C | 64°F18°C | 11 mph17 km/h from NW | Mostly Cloudy | Mostly Cloudy |
| September 9 | 51°F10°C | 65°F18°C | 13 mph21 km/h from W | Rain | Rain |
| September 10 | 46°F8°C | 58°F14°C | 12 mph19 km/h from W | Partly Cloudy | Mostly Clear |
| September 11 | 44°F6°C | 59°F15°C | 8 mph13 km/h from NW | Partly Cloudy | Mostly Clear |
| September 12 | 43°F6°C | 63°F17°C | 6 mph10 km/h from NW | Mostly Clear | Mostly Clear |
| September 13 | 45°F7°C | 68°F20°C | 7 mph11 km/h from W | Partly Cloudy | Partly Cloudy |
Yes
Low of 54°F12°C, High of 64°F18°CWind: 11 mph17 km/h
Precipitation: 17% rain