Yes

you do need a jacket based on the weather in Pittsburgh, PA 15228, USA 1 second ago

Why? Because it's quite chilly.
41°F5°C & Cloudy

Wind is 6 mph9 km/h from the N, gusting to 12 mph20 km/h
April 25
12am41°F5°C6 mph10 km/h NMostly Cloudy
1am41°F5°C5 mph9 km/h NMostly Cloudy
2am40°F5°C5 mph8 km/h NWMostly Cloudy
3am40°F4°C5 mph8 km/h NMostly Cloudy
4am39°F4°C4 mph7 km/h NMostly Cloudy
5am39°F4°C4 mph6 km/h NCloudy
6am39°F4°C3 mph6 km/h NCloudy
7am39°F4°C3 mph5 km/h NCloudy
8am41°F5°C3 mph5 km/h NECloudy
9am42°F6°C3 mph5 km/h NEMostly Cloudy
10am45°F7°C3 mph5 km/h NECloudy
11am47°F8°C3 mph5 km/h NECloudy
DateLowHighWindDayNight
April 2441°F5°C60°F15°C7 mph11 km/h from NWPartly CloudyMostly Cloudy
April 2539°F4°C58°F15°C4 mph6 km/h from NEMostly CloudyMostly Clear
April 2639°F4°C71°F22°C8 mph13 km/h from SEMostly ClearDrizzle
April 2749°F9°C73°F23°C8 mph13 km/h from SERainPartly Cloudy
April 2857°F14°C81°F27°C7 mph12 km/h from SWPartly CloudyPartly Cloudy
April 2959°F15°C84°F29°C7 mph11 km/h from SWPartly CloudyMostly Clear
April 3060°F16°C72°F22°C7 mph12 km/h from SWDrizzlePartly Cloudy

Yes

Low of 38°F4°C, High of 58°F15°C
Wind: 4 mph6 km/h
Precipitation: None

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