Yes

you do need a jacket based on the weather in Oakland, CA 94603, USA 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
58°F14°C & Mostly Cloudy

Wind is 7 mph12 km/h from the West, gusting to 12 mph19 km/h
April 25
9pm57°F14°C9 mph14 km/h WestPartly Cloudy
10pm55°F13°C8 mph13 km/h WestPartly Cloudy
11pm53°F12°C6 mph10 km/h WestPartly Cloudy
April 26
12am52°F11°C5 mph8 km/h WestPartly Cloudy
1am50°F10°C4 mph7 km/h WestPartly Cloudy
2am49°F10°C4 mph7 km/h WestPartly Cloudy
3am49°F10°C3 mph5 km/h WestPartly Cloudy
4am48°F9°C2 mph4 km/h WestPartly Cloudy
5am48°F9°C3 mph5 km/h WestPartly Cloudy
6am47°F8°C3 mph5 km/h WestPartly Cloudy
7am47°F8°C3 mph5 km/h SouthwestPartly Cloudy
8am46°F8°C3 mph5 km/h WestMostly Cloudy
DateLowHighWindDayNight
April 2549°F10°C58°F14°C6 mph10 km/h from WestMostly CloudyPartly Cloudy
April 2646°F8°C60°F16°C7 mph11 km/h from WestMostly CloudyDrizzle
April 2750°F10°C61°F16°C7 mph11 km/h from SouthwestMostly CloudyPartly Cloudy
April 2849°F9°C69°F21°C6 mph10 km/h from WestMostly ClearMostly Clear
April 2950°F10°C71°F22°C5 mph8 km/h from WestMostly ClearPartly Cloudy
April 3052°F11°C71°F22°C6 mph9 km/h from WestMostly ClearPartly Cloudy
May 152°F11°C65°F18°C8 mph12 km/h from WestPartly CloudyMostly Cloudy

Yes

Low of 46°F8°C, High of 60°F16°C
Wind: 7 mph11 km/h
Precipitation: None

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