Yes

you do need a jacket based on the weather in Orem, UT, USA 1 second ago

Why? Because it's cool. Pleasantly cool, but cool!
52°F11°C & Cloudy

Wind is 3 mph5 km/h from the NE, gusting to 7 mph11 km/h
October 17
10pm51°F10°C3 mph5 km/h SCloudy
11pm49°F10°C3 mph4 km/h SEPartly Cloudy
October 18
12am47°F8°C9 mph15 km/h NWMostly Cloudy
1am46°F8°C8 mph14 km/h NWCloudy
2am44°F7°C8 mph13 km/h NWCloudy
3am43°F6°C8 mph12 km/h NWCloudy
4am41°F5°C8 mph14 km/h NWRain
5am39°F4°C10 mph16 km/h NWRain
6am38°F3°C9 mph14 km/h NWRain
7am37°F3°C9 mph15 km/h NWRain
8am36°F2°C8 mph12 km/h NWDrizzle
9am36°F2°C7 mph11 km/h NWDrizzle
DateLowHighWindDayNight
October 1744°F7°C63°F17°C3 mph5 km/h from WCloudyRain
October 1836°F2°C47°F8°C6 mph10 km/h from NWDrizzleMostly Clear
October 1936°F2°C56°F14°C3 mph5 km/h from NWClearMostly Clear
October 2039°F4°C58°F14°C3 mph4 km/h from SWMostly ClearClear
October 2141°F5°C63°F17°C3 mph4 km/h from SMostly ClearClear
October 2246°F8°C67°F19°C3 mph4 km/h from SWClearClear
October 2348°F9°C68°F20°C2 mph4 km/h from SClearMostly Clear

Yes

Low of 36°F2°C, High of 46°F8°C
Wind: 6 mph10 km/h
Precipitation: 52% rain

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