Yes

you do need a jacket based on the weather in Port Moody, BC, Canada 1 second ago

Why? Because it's not very warm out!
55°F13°C & Mostly Cloudy

Wind is 4 mph7 km/h from the East, gusting to 9 mph15 km/h
July 19
10am56°F13°C5 mph8 km/h EastMostly Clear
11am57°F14°C5 mph9 km/h SoutheastPartly Cloudy
12pm59°F15°C6 mph9 km/h SoutheastPartly Cloudy
1pm61°F16°C5 mph9 km/h SoutheastPartly Cloudy
2pm61°F16°C6 mph9 km/h SoutheastCloudy
3pm62°F17°C6 mph9 km/h SoutheastCloudy
4pm64°F18°C5 mph9 km/h SoutheastMostly Cloudy
5pm66°F19°C5 mph8 km/h SouthPartly Cloudy
6pm67°F20°C5 mph8 km/h SouthPartly Cloudy
7pm68°F20°C5 mph7 km/h SouthPartly Cloudy
8pm69°F21°C4 mph7 km/h SouthPartly Cloudy
9pm69°F21°C4 mph6 km/h SouthMostly Clear
DateLowHighWindDayNight
July 1955°F13°C69°F21°C5 mph8 km/h from SoutheastPartly CloudyMostly Clear
July 2055°F13°C71°F22°C4 mph6 km/h from SouthMostly CloudyMostly Clear
July 2156°F14°C76°F25°C4 mph7 km/h from SouthwestMostly ClearMostly Clear
July 2259°F15°C78°F26°C4 mph7 km/h from SouthMostly ClearClear
July 2361°F16°C81°F27°C4 mph7 km/h from SouthClearClear
July 2460°F16°C76°F24°C5 mph8 km/h from SouthClearMostly Clear
July 2557°F14°C70°F21°C5 mph7 km/h from SoutheastMostly CloudyMostly Cloudy

Yes

Low of 55°F13°C, High of 71°F22°C
Wind: 4 mph6 km/h
Precipitation: None

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