Yes

you do need a jacket based on the weather in Palo Alto, CA, USA 1 minute ago

Why? Because sorry, it's too cool for just a hoodie!
58°F14°C & Clear

Wind is 3 mph5 km/h from the Southwest, gusting to 6 mph10 km/h
July 4
2am57°F14°C4 mph6 km/h SouthClear
3am57°F14°C5 mph8 km/h SouthClear
4am56°F13°C6 mph9 km/h SouthClear
5am55°F13°C5 mph8 km/h SouthClear
6am54°F12°C4 mph7 km/h SouthMostly Clear
7am53°F12°C5 mph7 km/h SouthMostly Clear
8am53°F12°C5 mph8 km/h SouthwestMostly Clear
9am53°F11°C5 mph8 km/h SouthwestMostly Clear
10am54°F12°C5 mph8 km/h SouthwestMostly Clear
11am57°F14°C4 mph6 km/h WestMostly Clear
12pm60°F15°C5 mph8 km/h WestMostly Clear
1pm63°F17°C6 mph9 km/h WestMostly Clear
DateLowHighWindDayNight
July 352°F11°C73°F23°C4 mph6 km/h from NorthwestMostly ClearClear
July 452°F11°C71°F22°C8 mph12 km/h from WestClearMostly Clear
July 550°F10°C72°F22°C6 mph10 km/h from WestMostly ClearMostly Clear
July 651°F11°C73°F23°C5 mph9 km/h from WestMostly ClearMostly Clear
July 752°F11°C76°F24°C4 mph7 km/h from WestClearMostly Clear
July 854°F12°C77°F25°C4 mph7 km/h from NorthwestClearMostly Clear
July 954°F12°C78°F26°C5 mph9 km/h from NorthwestClearClear

Yes

Low of 53°F12°C, High of 71°F22°C
Wind: 8 mph12 km/h
Precipitation: None

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