Yes

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

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
52°F11°C & Mostly Clear

Wind is 4 mph7 km/h from the West, gusting to 9 mph15 km/h
July 4
1am54°F12°C5 mph8 km/h SouthwestPartly Cloudy
2am57°F14°C6 mph9 km/h SouthwestMostly Cloudy
3am61°F16°C7 mph11 km/h SouthwestMostly Cloudy
4am65°F18°C7 mph12 km/h SouthwestMostly Cloudy
5am69°F20°C9 mph14 km/h SouthwestMostly Cloudy
6am72°F22°C10 mph16 km/h SouthwestPartly Cloudy
7am74°F23°C11 mph18 km/h SouthwestPartly Cloudy
8am76°F24°C12 mph20 km/h SouthwestMostly Clear
9am77°F25°C13 mph22 km/h SouthwestPartly Cloudy
10am78°F26°C14 mph23 km/h SouthwestPartly Cloudy
11am79°F26°C15 mph24 km/h SouthwestWindy
12pm78°F26°C16 mph25 km/h SouthwestWindy
DateLowHighWindDayNight
July 352°F11°C79°F26°C12 mph19 km/h from SouthwestPartly CloudyCloudy
July 460°F15°C74°F23°C15 mph25 km/h from SouthwestWindyMostly Cloudy
July 557°F14°C69°F20°C13 mph20 km/h from WestMostly CloudyRain
July 654°F12°C68°F20°C14 mph22 km/h from NorthDrizzleMostly Clear
July 751°F11°C74°F24°C10 mph17 km/h from NorthwestMostly ClearMostly Clear
July 851°F10°C80°F27°C6 mph9 km/h from WestPartly CloudyPartly Cloudy
July 960°F16°C82°F28°C6 mph9 km/h from WestMostly CloudyPartly Cloudy

No

Low of 60°F16°C, High of 73°F23°C
Wind: 15 mph25 km/h
Precipitation: 16% rain

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