Yes

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

Why? Because it's quite chilly.
47°F9°C & Cloudy

Wind is 4 mph6 km/h from the E, gusting to 8 mph13 km/h
April 26
9am47°F8°C4 mph7 km/h EDrizzle
10am48°F9°C4 mph7 km/h ECloudy
11am50°F10°C4 mph6 km/h SECloudy
12pm51°F11°C4 mph6 km/h SECloudy
1pm53°F12°C4 mph6 km/h SCloudy
2pm55°F13°C3 mph5 km/h NWCloudy
3pm56°F13°C3 mph5 km/h WCloudy
4pm55°F13°C5 mph7 km/h WCloudy
5pm55°F13°C6 mph9 km/h NWCloudy
6pm55°F13°C6 mph10 km/h NWCloudy
7pm53°F12°C6 mph10 km/h NWCloudy
8pm51°F11°C6 mph10 km/h NWCloudy
DateLowHighWindDayNight
April 2647°F8°C56°F13°C5 mph7 km/h from WRainRain
April 2744°F7°C56°F13°C5 mph9 km/h from NWDrizzlePartly Cloudy
April 2843°F6°C61°F16°C5 mph9 km/h from NWPartly CloudyPartly Cloudy
April 2945°F7°C68°F20°C7 mph12 km/h from SWPartly CloudyPartly Cloudy
April 3045°F7°C64°F18°C6 mph10 km/h from NMostly ClearMostly Clear
May 148°F9°C64°F18°C8 mph13 km/h from NWClearPartly Cloudy
May 241°F5°C74°F23°C4 mph6 km/h from SPartly CloudyMostly Cloudy

Yes

Low of 44°F7°C, High of 56°F14°C
Wind: 5 mph9 km/h
Precipitation: 50% rain

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