Yes
you do need a jacket based on the weather in St George, UT 84770, USA 1 second ago
Why? Because it's cool. Pleasantly cool, but cool!
53°F12°C & Clear
Wind is 3 mph5 km/h from the Southwest, gusting to 7 mph11 km/h
| December 15 | ||||
| 5pm | 54°F12°C | 4 mph6 km/h Southwest | Clear | |
| 6pm | 53°F12°C | 3 mph5 km/h Southwest | Clear | |
| 7pm | 50°F10°C | 2 mph3 km/h Southwest | Clear | |
| 8pm | 46°F8°C | 3 mph4 km/h North | Clear | |
| 9pm | 44°F6°C | 5 mph8 km/h North | Clear | |
| 10pm | 42°F5°C | 5 mph7 km/h North | Clear | |
| 11pm | 41°F5°C | 5 mph7 km/h North | Clear | |
| December 16 | ||||
| 12am | 39°F4°C | 4 mph6 km/h North | Clear | |
| 1am | 38°F3°C | 4 mph6 km/h North | Clear | |
| 2am | 37°F3°C | 4 mph6 km/h Northeast | Mostly Clear | |
| 3am | 36°F2°C | 4 mph6 km/h Northeast | Mostly Clear | |
| 4am | 35°F2°C | 4 mph6 km/h Northeast | Mostly Clear | |
| Date | Low | High | Wind | Day | Night |
|---|---|---|---|---|---|
| December 15 | 35°F2°C | 54°F12°C | 3 mph5 km/h from South | Clear | Mostly Clear |
| December 16 | 32°F0°C | 54°F12°C | 3 mph5 km/h from East | Partly Cloudy | Mostly Cloudy |
| December 17 | 35°F2°C | 56°F13°C | 3 mph4 km/h from East | Partly Cloudy | Mostly Clear |
| December 18 | 37°F3°C | 60°F15°C | 3 mph5 km/h from East | Mostly Clear | Mostly Clear |
| December 19 | 39°F4°C | 60°F16°C | 2 mph3 km/h from East | Partly Cloudy | Mostly Clear |
| December 20 | 39°F4°C | 61°F16°C | 3 mph5 km/h from East | Mostly Clear | Mostly Clear |
| December 21 | 40°F4°C | 59°F15°C | 3 mph5 km/h from Southeast | Partly Cloudy | Mostly Cloudy |
Yes
Low of 32°F0°C, High of 55°F13°CWind: 3 mph5 km/h
Precipitation: None