No

you don't need a jacket based on the weather in Oshawa, ON, Canada 1 second ago

60°F15°C & Clear

Wind is 3 mph5 km/h from the North, gusting to 4 mph6 km/h
September 18
1am59°F15°C4 mph6 km/h NorthClear
2am59°F15°C4 mph7 km/h NorthClear
3am58°F14°C4 mph7 km/h NorthClear
4am58°F14°C3 mph5 km/h NorthClear
5am57°F14°C2 mph3 km/h NorthClear
6am57°F14°C4 mph7 km/h NorthwestClear
7am56°F13°C4 mph7 km/h NorthwestMostly Clear
8am58°F14°C4 mph6 km/h NorthwestMostly Clear
9am63°F17°C3 mph5 km/h NorthwestMostly Clear
10am68°F20°C3 mph4 km/h WestMostly Clear
11am72°F22°C3 mph5 km/h WestPartly Cloudy
12pm75°F24°C4 mph7 km/h WestPartly Cloudy
DateLowHighWindDayNight
September 1856°F13°C78°F26°C5 mph9 km/h from WestMostly ClearMostly Clear
September 1955°F13°C70°F21°C6 mph10 km/h from NorthClearClear
September 2048°F9°C64°F18°C9 mph15 km/h from EastMostly ClearPartly Cloudy
September 2155°F13°C73°F23°C8 mph13 km/h from SoutheastPartly CloudyCloudy
September 2265°F18°C73°F23°C6 mph10 km/h from SouthDrizzleRain
September 2363°F17°C73°F23°C5 mph8 km/h from SouthwestDrizzleMostly Cloudy
September 2460°F15°C73°F23°C6 mph9 km/h from SoutheastRainMostly Clear

Yes

Low of 55°F13°C, High of 70°F21°C
Wind: 6 mph10 km/h
Precipitation: None

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