Yes

you do need a jacket based on the weather in Kiefer, OK, USA 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, your hat is now someone else's problem, two cities away!
42°F6°C & Windy

Wind is 18 mph29 km/h from the North, gusting to 28 mph45 km/h
November 9
4pm42°F6°C18 mph29 km/h NorthWindy
5pm44°F7°C18 mph28 km/h NorthWindy
6pm46°F8°C17 mph28 km/h NorthWindy
7pm47°F8°C17 mph28 km/h NorthWindy
8pm48°F9°C17 mph27 km/h NorthWindy
9pm48°F9°C16 mph27 km/h NorthWindy
10pm47°F8°C16 mph25 km/h NorthWindy
11pm44°F7°C12 mph20 km/h NorthClear
November 10
12am41°F5°C10 mph15 km/h NorthClear
1am39°F4°C9 mph14 km/h NorthClear
2am37°F3°C8 mph12 km/h NorthClear
3am35°F2°C7 mph11 km/h NorthClear
DateLowHighWindDayNight
November 931°F-1°C51°F10°C15 mph24 km/h from NorthWindyClear
November 1027°F-3°C47°F8°C5 mph8 km/h from NorthClearClear
November 1135°F2°C70°F21°C16 mph25 km/h from SouthWindyClear
November 1243°F6°C71°F22°C3 mph6 km/h from EastClearMostly Clear
November 1348°F9°C75°F24°C10 mph17 km/h from SouthPartly CloudyMostly Clear
November 1461°F16°C77°F25°C16 mph25 km/h from SouthWindyMostly Clear
November 1561°F16°C71°F22°C16 mph26 km/h from SouthDrizzleRain

Yes

Low of 27°F-3°C, High of 47°F9°C
Wind: 5 mph8 km/h
Precipitation: None

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