Yes
you do need a jacket based on the weather in Eton, Windsor SL4, UK 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
51°F11°C & Clear
Wind is 2 mph3 km/h from the South, gusting to 4 mph7 km/h
| September 8 | ||||
| 11pm | 51°F10°C | 2 mph4 km/h South | Clear | |
| September 9 | ||||
| 12am | 50°F10°C | 2 mph3 km/h Southeast | Clear | |
| 1am | 50°F10°C | 2 mph4 km/h Southeast | Clear | |
| 2am | 50°F10°C | 3 mph4 km/h Southeast | Mostly Clear | |
| 3am | 53°F11°C | 3 mph4 km/h Southeast | Mostly Clear | |
| 4am | 57°F14°C | 3 mph5 km/h Southeast | Clear | |
| 5am | 61°F16°C | 6 mph9 km/h South | Mostly Clear | |
| 6am | 64°F18°C | 8 mph14 km/h South | Mostly Clear | |
| 7am | 66°F19°C | 9 mph15 km/h South | Mostly Clear | |
| 8am | 67°F19°C | 10 mph16 km/h South | Partly Cloudy | |
| 9am | 67°F19°C | 11 mph18 km/h South | Mostly Cloudy | |
| 10am | 67°F19°C | 10 mph16 km/h South | Mostly Cloudy | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| September 8 | 49°F10°C | 67°F20°C | 8 mph13 km/h from South | Partly Cloudy | Drizzle |
| September 9 | 56°F13°C | 63°F17°C | 11 mph17 km/h from South | Drizzle | Drizzle |
| September 10 | 52°F11°C | 64°F18°C | 13 mph21 km/h from Southwest | Drizzle | Drizzle |
| September 11 | 50°F10°C | 63°F17°C | 12 mph19 km/h from Southwest | Drizzle | Drizzle |
| September 12 | 51°F11°C | 62°F17°C | 11 mph18 km/h from Southwest | Drizzle | Partly Cloudy |
| September 13 | 50°F10°C | 66°F19°C | 13 mph21 km/h from Southwest | Rain | Drizzle |
| September 14 | 55°F13°C | 66°F19°C | 17 mph28 km/h from Southwest | Windy | Partly Cloudy |
Yes
Low of 55°F13°C, High of 64°F18°CWind: 11 mph17 km/h
Precipitation: 68% rain