Yes

you do need a jacket based on the weather in Bootle, UK 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
50°F10°C & Clear

Wind is 6 mph9 km/h from the East, gusting to 14 mph23 km/h
May 14
2am51°F11°C6 mph10 km/h EastClear
3am54°F12°C7 mph11 km/h EastClear
4am57°F14°C7 mph11 km/h EastMostly Clear
5am60°F15°C7 mph12 km/h EastMostly Clear
6am63°F17°C8 mph13 km/h EastMostly Clear
7am65°F18°C8 mph13 km/h EastMostly Clear
8am67°F19°C8 mph13 km/h EastMostly Clear
9am68°F20°C7 mph12 km/h EastMostly Clear
10am69°F21°C7 mph11 km/h EastPartly Cloudy
11am70°F21°C7 mph11 km/h NortheastMostly Cloudy
12pm69°F21°C8 mph13 km/h NortheastMostly Cloudy
1pm69°F20°C9 mph15 km/h NortheastMostly Cloudy
DateLowHighWindDayNight
May 1350°F10°C70°F21°C8 mph12 km/h from EastMostly ClearMostly Clear
May 1447°F8°C64°F18°C7 mph12 km/h from NorthMostly ClearClear
May 1548°F9°C64°F18°C7 mph12 km/h from NorthwestClearClear
May 1649°F10°C67°F20°C8 mph12 km/h from NorthClearClear
May 1751°F11°C67°F19°C7 mph12 km/h from NorthClearMostly Clear
May 1850°F10°C68°F20°C6 mph10 km/h from NortheastMostly ClearClear
May 1951°F11°C66°F19°C7 mph12 km/h from NorthClearMostly Clear

Yes

Low of 47°F9°C, High of 64°F18°C
Wind: 7 mph12 km/h
Precipitation: None

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