Yes

you do need a jacket based on the weather in Calgary, AB, Canada 1 second ago

Why? Because a jacket will keep you cozy, but you won't break a seat!
58°F15°C & Mostly Cloudy

Wind is 8 mph13 km/h from the Northwest, gusting to 15 mph24 km/h
September 15
6am58°F14°C8 mph13 km/h NorthwestMostly Cloudy
7am58°F14°C8 mph14 km/h NorthwestMostly Cloudy
8am57°F14°C9 mph14 km/h NorthwestCloudy
9am57°F14°C9 mph14 km/h NorthwestCloudy
10am57°F14°C9 mph15 km/h NorthwestCloudy
11am58°F15°C10 mph16 km/h NorthwestCloudy
12pm59°F15°C11 mph17 km/h NorthwestCloudy
1pm61°F16°C11 mph18 km/h NorthCloudy
2pm63°F17°C11 mph18 km/h NorthCloudy
3pm65°F18°C11 mph17 km/h NorthCloudy
4pm66°F19°C11 mph17 km/h NorthCloudy
5pm68°F20°C9 mph15 km/h NorthCloudy
DateLowHighWindDayNight
September 1556°F13°C68°F20°C9 mph15 km/h from NorthCloudyMostly Clear
September 1649°F10°C74°F24°C5 mph9 km/h from SouthClearClear
September 1749°F10°C78°F25°C7 mph11 km/h from SoutheastClearClear
September 1851°F11°C71°F22°C7 mph11 km/h from NorthClearPartly Cloudy
September 1952°F11°C73°F23°C4 mph6 km/h from SoutheastMostly CloudyPartly Cloudy
September 2053°F12°C77°F25°C5 mph8 km/h from SouthwestMostly ClearMostly Clear
September 2154°F12°C70°F21°C7 mph12 km/h from WestPartly CloudyMostly Clear

Yes

Low of 49°F10°C, High of 74°F24°C
Wind: 5 mph9 km/h
Precipitation: None

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