Yes

you do need a jacket based on the weather in Riverside (University), California, United States 1 second ago

Why? Because a jacket will keep you cozy, but you won't break a seat!
55°F13°C & Clear

Wind is 4 mph7 km/h from the East, gusting to 5 mph8 km/h
October 17
12pm54°F12°C5 mph7 km/h EastClear
1pm54°F12°C4 mph6 km/h EastClear
2pm54°F12°C5 mph8 km/h EastClear
3pm56°F13°C4 mph6 km/h EastClear
4pm62°F17°C5 mph7 km/h NortheastClear
5pm69°F20°C4 mph6 km/h NorthClear
6pm73°F23°C3 mph4 km/h NorthClear
7pm76°F24°C4 mph6 km/h NorthClear
8pm78°F26°C5 mph9 km/h NorthClear
9pm80°F27°C6 mph10 km/h NorthClear
10pm81°F27°C7 mph11 km/h NorthwestClear
11pm81°F27°C8 mph12 km/h NorthwestClear
DateLowHighWindDayNight
October 1754°F12°C81°F27°C5 mph9 km/h from NorthwestClearClear
October 1853°F11°C84°F29°C3 mph5 km/h from NorthwestClearMostly Clear
October 1954°F12°C83°F29°C4 mph6 km/h from WestMostly ClearClear
October 2054°F12°C84°F29°C3 mph5 km/h from WestClearClear
October 2156°F13°C76°F25°C5 mph8 km/h from WestMostly ClearPartly Cloudy
October 2255°F13°C71°F22°C5 mph7 km/h from WestMostly ClearPartly Cloudy
October 2356°F13°C78°F26°C3 mph6 km/h from WestMostly ClearPartly Cloudy

Yes

Low of 53°F12°C, High of 84°F29°C
Wind: 3 mph5 km/h
Precipitation: None

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