Yes

you do need a jacket based on the weather in Mason City, IA 50402, USA 1 second ago

Why? Because it's cold enough that makes you wish you had a hat, but you're still too proud to admit it!
40°F5°C & Cloudy

Wind is 7 mph11 km/h from the West, gusting to 16 mph25 km/h
October 31
11pm40°F5°C7 mph11 km/h WestPartly Cloudy
November 1
12am38°F4°C8 mph13 km/h WestRain
1am37°F3°C6 mph9 km/h NorthwestMostly Cloudy
2am37°F3°C6 mph10 km/h NorthwestMostly Cloudy
3am36°F2°C7 mph11 km/h NorthwestMostly Cloudy
4am36°F2°C7 mph11 km/h NorthwestMostly Cloudy
5am36°F2°C8 mph13 km/h NorthwestMostly Cloudy
6am36°F2°C8 mph13 km/h NorthwestCloudy
7am36°F2°C8 mph12 km/h NorthwestCloudy
8am36°F2°C8 mph12 km/h NorthwestCloudy
9am36°F2°C8 mph13 km/h NorthwestCloudy
10am36°F2°C8 mph14 km/h NorthwestCloudy
DateLowHighWindDayNight
October 3136°F2°C43°F6°C9 mph14 km/h from WestPartly CloudyRain
November 136°F2°C46°F8°C9 mph14 km/h from NorthMostly CloudyMostly Cloudy
November 234°F1°C52°F11°C16 mph25 km/h from SouthWindyPartly Cloudy
November 339°F4°C56°F13°C11 mph18 km/h from NorthwestMostly ClearPartly Cloudy
November 434°F1°C56°F13°C10 mph16 km/h from SouthPartly CloudyPartly Cloudy
November 541°F5°C57°F14°C10 mph17 km/h from NorthwestMostly ClearPartly Cloudy
November 639°F4°C53°F12°C11 mph18 km/h from SoutheastCloudyCloudy

Yes

Low of 36°F2°C, High of 46°F8°C
Wind: 9 mph14 km/h
Precipitation: None

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