Yes

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

Why? Because it's not very warm out!
54°F12°C & Mostly Cloudy

Wind is 2 mph3 km/h from the East, gusting to 6 mph9 km/h
August 21
4am55°F13°C3 mph4 km/h EastMostly Cloudy
5am56°F14°C2 mph4 km/h EastCloudy
6am58°F14°C2 mph4 km/h EastCloudy
7am60°F15°C2 mph4 km/h NortheastMostly Cloudy
8am61°F16°C3 mph4 km/h NortheastMostly Cloudy
9am63°F17°C3 mph5 km/h NorthPartly Cloudy
10am64°F18°C3 mph5 km/h NorthwestMostly Cloudy
11am65°F18°C3 mph5 km/h NorthwestMostly Cloudy
12pm65°F19°C3 mph5 km/h NorthwestMostly Cloudy
1pm65°F19°C2 mph4 km/h NorthwestMostly Cloudy
2pm65°F18°C2 mph4 km/h WestMostly Cloudy
3pm63°F17°C3 mph4 km/h SouthwestMostly Cloudy
DateLowHighWindDayNight
August 2050°F10°C65°F19°C3 mph4 km/h from NorthMostly CloudyPartly Cloudy
August 2150°F10°C64°F18°C3 mph5 km/h from NortheastMostly CloudyMostly Cloudy
August 2250°F10°C65°F18°C6 mph9 km/h from EastMostly CloudyMostly Cloudy
August 2351°F11°C69°F21°C4 mph6 km/h from EastPartly CloudyPartly Cloudy
August 2452°F11°C71°F22°C4 mph7 km/h from SoutheastMostly ClearPartly Cloudy
August 2553°F12°C70°F21°C10 mph16 km/h from SoutheastMostly CloudyDrizzle
August 2655°F13°C68°F20°C9 mph14 km/h from EastDrizzleDrizzle

Yes

Low of 50°F10°C, High of 64°F18°C
Wind: 3 mph5 km/h
Precipitation: None

Support This Page