Yes

you do need a jacket based on the weather in Cape Horn, Magallanes and Chilean Antarctica, Chile 1 second ago

Why? Because you're not freezing, but you’ll definitely start complaining if it lasts much longer and it's so windy, even the squirrels are holding onto branches for dear life!
46°F8°C & Windy

Wind is 16 mph25 km/h from the North, gusting to 21 mph33 km/h
September 11
10am46°F8°C17 mph27 km/h NorthWindy
11am47°F8°C17 mph28 km/h NorthWindy
12pm48°F9°C18 mph29 km/h NorthWindy
1pm48°F9°C20 mph31 km/h NorthWindy
2pm49°F9°C22 mph35 km/h NorthWindy
3pm48°F9°C23 mph37 km/h NorthWindy
4pm48°F9°C24 mph39 km/h NorthWindy
5pm47°F8°C26 mph41 km/h NorthWindy
6pm46°F8°C28 mph45 km/h NorthWindy
7pm45°F7°C30 mph48 km/h NorthWindy
8pm44°F7°C32 mph52 km/h NorthWindy
9pm44°F7°C33 mph53 km/h NorthWindy
DateLowHighWindDayNight
September 1044°F7°C49°F9°C19 mph31 km/h from NorthWindyWindy
September 1144°F7°C47°F8°C19 mph31 km/h from NortheastWindyWindy
September 1244°F7°C49°F9°C17 mph28 km/h from NorthWindyWindy
September 1342°F5°C46°F8°C24 mph38 km/h from NorthwestDrizzleDrizzle
September 1436°F2°C44°F6°C25 mph40 km/h from WestDrizzleWindy
September 1535°F2°C38°F3°C26 mph42 km/h from SouthwestDrizzleDrizzle
September 1636°F2°C40°F4°C30 mph49 km/h from WestDrizzleDrizzle

Yes

Low of 44°F7°C, High of 46°F8°C
Wind: 19 mph31 km/h
Precipitation: None

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