Yes

you do need a jacket based on the weather in Aurora, CO 80247, USA 1 second ago

Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer!
44°F7°C & Clear

Wind is 5 mph8 km/h from the East, gusting to 11 mph18 km/h
October 31
2am43°F6°C5 mph9 km/h EastClear
3am42°F5°C5 mph8 km/h SoutheastMostly Clear
4am40°F4°C4 mph6 km/h EastClear
5am38°F3°C3 mph4 km/h EastMostly Clear
6am36°F2°C5 mph8 km/h SouthClear
7am35°F2°C4 mph7 km/h SouthClear
8am34°F1°C4 mph6 km/h SouthClear
9am33°F1°C3 mph5 km/h SouthwestMostly Clear
10am32°F-0°C3 mph5 km/h SouthwestMostly Cloudy
11am31°F-1°C3 mph5 km/h SouthwestMostly Cloudy
12pm30°F-1°C2 mph4 km/h WestMostly Cloudy
1pm30°F-1°C2 mph4 km/h WestMostly Cloudy
DateLowHighWindDayNight
October 3036°F2°C55°F13°C3 mph5 km/h from NortheastClearMostly Clear
October 3129°F-1°C49°F9°C5 mph8 km/h from NorthPartly CloudyClear
November 127°F-3°C63°F17°C3 mph5 km/h from SoutheastMostly ClearClear
November 242°F5°C75°F24°C4 mph7 km/h from SouthwestClearMostly Clear
November 337°F3°C60°F15°C4 mph6 km/h from NortheastPartly CloudyMostly Clear
November 441°F5°C71°F22°C4 mph7 km/h from SouthwestMostly ClearMostly Clear
November 541°F5°C65°F18°C4 mph6 km/h from SoutheastClearMostly Clear

Yes

Low of 29°F-2°C, High of 49°F10°C
Wind: 5 mph8 km/h
Precipitation: None

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