Yes

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

Why? Because there's a refreshing nip in the air.
44°F7°C & Mostly Cloudy

Wind is 2 mph4 km/h from the S, gusting to 4 mph6 km/h
March 29
8am45°F7°C3 mph5 km/h SCloudy
9am45°F7°C3 mph6 km/h SCloudy
10am46°F8°C4 mph6 km/h SCloudy
11am47°F8°C4 mph7 km/h SECloudy
12pm50°F10°C5 mph9 km/h SECloudy
1pm52°F11°C8 mph13 km/h SECloudy
2pm54°F12°C11 mph18 km/h SECloudy
3pm55°F13°C15 mph24 km/h SEWindy
4pm56°F13°C17 mph28 km/h SEWindy
5pm57°F14°C18 mph30 km/h SEWindy
6pm55°F13°C18 mph29 km/h SEDrizzle
7pm54°F12°C17 mph27 km/h SERain
DateLowHighWindDayNight
March 2944°F7°C57°F14°C13 mph21 km/h from SERainDrizzle
March 3047°F8°C63°F17°C8 mph13 km/h from EDrizzleMostly Cloudy
March 3146°F8°C65°F19°C5 mph8 km/h from NWPartly CloudyClear
April 147°F8°C72°F22°C7 mph11 km/h from NWClearClear
April 247°F8°C76°F25°C3 mph5 km/h from NEClearClear
April 349°F10°C73°F23°C7 mph12 km/h from WMostly ClearMostly Clear
April 446°F8°C59°F15°C11 mph18 km/h from WPartly CloudyMostly Cloudy

Yes

Low of 46°F8°C, High of 63°F17°C
Wind: 8 mph13 km/h
Precipitation: 40% rain

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