Yes

you do need a jacket based on the weather in Scarborough, ME, USA 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it!
58°F15°C & Clear

Wind is 6 mph9 km/h from the North, gusting to 13 mph21 km/h
June 8
4am58°F14°C6 mph10 km/h NorthClear
5am58°F14°C5 mph9 km/h NorthClear
6am58°F15°C6 mph9 km/h NorthClear
7am61°F16°C7 mph11 km/h NorthClear
8am64°F18°C8 mph13 km/h NorthClear
9am66°F19°C8 mph13 km/h NorthMostly Clear
10am67°F20°C7 mph11 km/h NortheastPartly Cloudy
11am69°F21°C6 mph10 km/h NortheastMostly Clear
12pm70°F21°C5 mph9 km/h EastMostly Cloudy
1pm71°F21°C6 mph9 km/h EastMostly Cloudy
2pm70°F21°C6 mph10 km/h SoutheastMostly Cloudy
3pm70°F21°C7 mph11 km/h SoutheastPartly Cloudy
DateLowHighWindDayNight
June 856°F13°C71°F21°C7 mph11 km/h from EastPartly CloudyMostly Cloudy
June 954°F12°C65°F18°C8 mph13 km/h from EastPartly CloudyMostly Cloudy
June 1053°F12°C61°F16°C6 mph9 km/h from EastRainDrizzle
June 1156°F13°C76°F24°C8 mph13 km/h from WestMostly ClearClear
June 1261°F16°C77°F25°C12 mph20 km/h from WestPartly CloudyMostly Clear
June 1356°F14°C71°F22°C6 mph10 km/h from NorthwestPartly CloudyPartly Cloudy
June 1454°F12°C65°F19°C5 mph8 km/h from SoutheastMostly CloudyRain

Yes

Low of 55°F13°C, High of 65°F19°C
Wind: 8 mph13 km/h
Precipitation: None

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