Yes
you do need a jacket based on the weather in Westminster, London SW1, UK 1 second ago
Why? Because it's not very warm out!
55°F13°C & Mostly Cloudy
Wind is 6 mph10 km/h from the Northeast, gusting to 15 mph24 km/h
| May 19 | ||||
| 4am | 55°F13°C | 7 mph10 km/h Northeast | Mostly Cloudy | |
| 5am | 57°F14°C | 6 mph10 km/h Northeast | Cloudy | |
| 6am | 59°F15°C | 7 mph11 km/h East | Mostly Cloudy | |
| 7am | 62°F17°C | 7 mph12 km/h East | Mostly Cloudy | |
| 8am | 64°F18°C | 8 mph14 km/h East | Mostly Cloudy | |
| 9am | 66°F19°C | 9 mph15 km/h East | Partly Cloudy | |
| 10am | 67°F20°C | 10 mph15 km/h East | Partly Cloudy | |
| 11am | 67°F20°C | 10 mph16 km/h East | Mostly Clear | |
| 12pm | 67°F19°C | 10 mph16 km/h East | Mostly Clear | |
| 1pm | 66°F19°C | 9 mph15 km/h East | Clear | |
| 2pm | 64°F18°C | 9 mph15 km/h East | Clear | |
| 3pm | 62°F17°C | 8 mph13 km/h East | Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| May 18 | 51°F10°C | 67°F20°C | 8 mph13 km/h from East | Partly Cloudy | Clear |
| May 19 | 49°F9°C | 71°F21°C | 5 mph9 km/h from Northeast | Mostly Cloudy | Cloudy |
| May 20 | 54°F12°C | 67°F19°C | 4 mph7 km/h from Northwest | Cloudy | Mostly Clear |
| May 21 | 47°F8°C | 61°F16°C | 6 mph10 km/h from North | Partly Cloudy | Partly Cloudy |
| May 22 | 46°F8°C | 63°F17°C | 6 mph9 km/h from West | Partly Cloudy | Partly Cloudy |
| May 23 | 51°F10°C | 64°F18°C | 7 mph12 km/h from Southwest | Mostly Cloudy | Drizzle |
| May 24 | 50°F10°C | 64°F18°C | 11 mph18 km/h from West | Drizzle | Partly Cloudy |
Yes
Low of 49°F10°C, High of 71°F22°CWind: 5 mph9 km/h
Precipitation: None