No

you don't need a jacket based on the weather in Santa Clara, CA 95054, USA 1 second ago

60°F16°C & Clear

Wind is 1 mph2 km/h from the Northwest, gusting to 4 mph6 km/h
July 2
4am60°F15°C3 mph4 km/h WestClear
5am58°F15°C4 mph7 km/h NorthwestClear
6am58°F14°C2 mph3 km/h NorthwestMostly Clear
7am58°F14°C2 mph3 km/h NorthMostly Clear
8am57°F14°C1 mph2 km/h WestClear
9am57°F14°C1 mph2 km/h SouthwestClear
10am59°F15°C2 mph3 km/h WestClear
11am61°F16°C2 mph3 km/h SouthwestMostly Clear
12pm65°F18°C2 mph3 km/h WestClear
1pm69°F21°C2 mph3 km/h NorthwestClear
2pm73°F23°C4 mph6 km/h NorthwestClear
3pm77°F25°C5 mph8 km/h NorthwestClear
DateLowHighWindDayNight
July 257°F14°C83°F29°C5 mph8 km/h from NorthwestClearClear
July 357°F14°C79°F26°C6 mph9 km/h from WestPartly CloudyMostly Clear
July 456°F13°C76°F24°C7 mph11 km/h from NorthwestClearClear
July 553°F12°C78°F26°C5 mph8 km/h from NorthwestClearClear
July 655°F13°C79°F26°C5 mph8 km/h from NorthwestClearClear
July 755°F13°C80°F27°C4 mph7 km/h from NorthwestClearMostly Clear
July 856°F13°C81°F27°C5 mph8 km/h from NorthwestClearMostly Clear

Yes

Low of 57°F14°C, High of 80°F27°C
Wind: 6 mph9 km/h
Precipitation: None

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