Yes

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

Why? Because it's not very warm out!
54°F12°C & Clear

Wind is 3 mph5 km/h from the Southwest, gusting to 4 mph6 km/h
November 9
8am54°F12°C3 mph5 km/h SouthClear
9am52°F11°C3 mph5 km/h SouthClear
10am52°F11°C3 mph5 km/h SoutheastClear
11am51°F11°C2 mph4 km/h SoutheastClear
12pm50°F10°C3 mph5 km/h SouthClear
1pm49°F9°C4 mph6 km/h SouthClear
2pm49°F9°C3 mph5 km/h SouthClear
3pm51°F11°C3 mph5 km/h SoutheastClear
4pm57°F14°C3 mph4 km/h SoutheastClear
5pm64°F18°C3 mph5 km/h NortheastClear
6pm70°F21°C5 mph8 km/h NortheastClear
7pm74°F23°C10 mph16 km/h NortheastClear
DateLowHighWindDayNight
November 847°F8°C80°F27°C3 mph5 km/h from NortheastClearClear
November 949°F9°C79°F26°C8 mph12 km/h from NortheastClearClear
November 1051°F11°C78°F26°C4 mph6 km/h from NortheastMostly ClearMostly Cloudy
November 1154°F12°C78°F25°C5 mph8 km/h from SouthwestMostly CloudyMostly Cloudy
November 1255°F13°C74°F23°C10 mph16 km/h from SouthMostly CloudyPartly Cloudy
November 1351°F10°C68°F20°C15 mph24 km/h from SouthDrizzleDrizzle
November 1441°F5°C56°F13°C14 mph22 km/h from SouthwestPartly CloudyPartly Cloudy

Yes

Low of 48°F9°C, High of 79°F26°C
Wind: 8 mph12 km/h
Precipitation: None

Support This Page