Yes

you do need a jacket based on the weather in Victorville, CA, USA 1 second ago

Why? Because it's bitterly cold.
46°F8°C & Clear

Wind is 10 mph16 km/h from the SW, gusting to 22 mph36 km/h
April 26
8am47°F8°C10 mph16 km/h SWMostly Clear
9am48°F9°C12 mph20 km/h SWMostly Clear
10am49°F10°C12 mph20 km/h SWMostly Clear
11am52°F11°C16 mph26 km/h SWWindy
12pm55°F13°C18 mph29 km/h WWindy
1pm58°F15°C20 mph32 km/h WWindy
2pm61°F16°C22 mph35 km/h WWindy
3pm63°F17°C23 mph37 km/h WWindy
4pm65°F18°C25 mph40 km/h WWindy
5pm66°F19°C26 mph42 km/h WWindy
6pm65°F19°C26 mph42 km/h WWindy
7pm65°F18°C26 mph42 km/h WWindy
DateLowHighWindDayNight
April 2646°F8°C66°F19°C22 mph36 km/h from WWindyClear
April 2745°F7°C72°F22°C10 mph16 km/h from WClearClear
April 2846°F8°C79°F26°C5 mph9 km/h from WClearClear
April 2951°F10°C82°F28°C7 mph11 km/h from SWClearClear
April 3052°F11°C83°F29°C6 mph10 km/h from SWClearClear
May 154°F12°C84°F29°C6 mph10 km/h from SWClearClear
May 255°F13°C83°F28°C9 mph14 km/h from SClearMostly Clear

Yes

Low of 45°F7°C, High of 73°F23°C
Wind: 10 mph16 km/h
Precipitation: None

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