Yes

you do need a jacket based on the weather in Spanish Fork, UT 84660, USA 1 second ago

Why? Because it's cold enough that makes you wish you had a hat, but you're still too proud to admit it!
43°F6°C & Mostly Cloudy

Wind is 4 mph6 km/h from the Southwest, gusting to 5 mph8 km/h
May 14
8am42°F6°C4 mph7 km/h WestMostly Cloudy
9am41°F5°C2 mph2 km/h SouthwestCloudy
10am43°F6°C4 mph6 km/h SouthwestMostly Cloudy
11am45°F7°C6 mph9 km/h NorthwestMostly Cloudy
12pm46°F8°C3 mph6 km/h SouthwestMostly Cloudy
1pm49°F9°C5 mph9 km/h WestCloudy
2pm51°F11°C9 mph14 km/h WestCloudy
3pm49°F10°C13 mph20 km/h NorthwestCloudy
4pm49°F9°C7 mph12 km/h NorthwestDrizzle
5pm51°F10°C8 mph12 km/h NorthwestCloudy
6pm53°F12°C6 mph10 km/h NorthwestMostly Cloudy
7pm49°F10°C11 mph18 km/h NorthwestRain
DateLowHighWindDayNight
May 1441°F5°C53°F12°C7 mph11 km/h from NorthwestRainMostly Clear
May 1540°F4°C61°F16°C5 mph8 km/h from WestPartly CloudyMostly Clear
May 1643°F6°C66°F19°C4 mph7 km/h from WestMostly CloudyPartly Cloudy
May 1748°F9°C71°F22°C5 mph8 km/h from SouthwestMostly CloudyCloudy
May 1845°F7°C54°F12°C5 mph9 km/h from WestRainRain
May 1944°F6°C56°F13°C5 mph9 km/h from WestDrizzleMostly Clear
May 2043°F6°C69°F21°C4 mph6 km/h from NorthwestMostly ClearMostly Clear

Yes

Low of 40°F5°C, High of 61°F16°C
Wind: 5 mph8 km/h
Precipitation: 9% rain

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