Yes

you do need a jacket based on the weather in Yukon Territory, Canada 1 second ago

Why? Because the cold's there, but it's just a reminder, not an invasion!
37°F3°C & Haze

Wind is 2 mph3 km/h from the East, gusting to 4 mph7 km/h
September 22
5am37°F3°C2 mph4 km/h EastDrizzle
6am37°F3°C3 mph4 km/h EastDrizzle
7am37°F3°C3 mph5 km/h EastCloudy
8am37°F3°C3 mph5 km/h EastCloudy
9am37°F3°C3 mph5 km/h EastCloudy
10am36°F2°C3 mph5 km/h EastCloudy
11am36°F2°C3 mph5 km/h EastCloudy
12pm36°F2°C4 mph6 km/h EastCloudy
1pm37°F3°C4 mph6 km/h EastCloudy
2pm38°F4°C4 mph6 km/h SoutheastCloudy
3pm40°F4°C4 mph6 km/h EastMostly Cloudy
4pm42°F5°C4 mph7 km/h EastMostly Cloudy
DateLowHighWindDayNight
September 2236°F2°C44°F6°C4 mph6 km/h from EastDrizzleCloudy
September 2334°F1°C40°F4°C4 mph6 km/h from SouthwestDrizzleMostly Cloudy
September 2432°F0°C41°F5°C6 mph10 km/h from SouthMostly CloudyMostly Cloudy
September 2532°F0°C38°F4°C4 mph7 km/h from SoutheastCloudyCloudy
September 2630°F-1°C41°F5°C3 mph5 km/h from SoutheastMostly CloudyMostly Cloudy
September 2730°F-1°C40°F4°C4 mph6 km/h from SoutheastCloudyCloudy
September 2829°F-1°C40°F4°C4 mph6 km/h from SoutheastFlurriesMostly Cloudy

Yes

Low of 34°F1°C, High of 40°F5°C
Wind: 4 mph6 km/h
Precipitation: 41% rain

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