Yes

you do need a jacket based on the weather in Whitefield, NH, USA 1 second ago

Why? Because it's cold enough to freeze the brass off a bald monkey!
31°F-1°C & Cloudy

Wind is 1 mph2 km/h from the North, gusting to 4 mph7 km/h
October 29
11am31°F-1°C1 mph2 km/h NorthCloudy
12pm32°F-0°C2 mph3 km/h NorthMostly Cloudy
1pm35°F2°C2 mph3 km/h NorthwestMostly Clear
2pm40°F5°C2 mph3 km/h NorthMostly Clear
3pm44°F7°C2 mph4 km/h NortheastMostly Clear
4pm48°F9°C4 mph6 km/h NortheastClear
5pm50°F10°C3 mph5 km/h NortheastClear
6pm52°F11°C3 mph5 km/h NortheastPartly Cloudy
7pm52°F11°C4 mph6 km/h NortheastPartly Cloudy
8pm51°F11°C4 mph6 km/h NortheastPartly Cloudy
9pm49°F9°C3 mph5 km/h NortheastMostly Cloudy
10pm45°F7°C4 mph6 km/h EastMostly Cloudy
DateLowHighWindDayNight
October 2928°F-2°C52°F11°C3 mph5 km/h from NortheastPartly CloudyMostly Clear
October 3033°F0°C50°F10°C4 mph7 km/h from EastMostly CloudyRain
October 3141°F5°C56°F13°C7 mph11 km/h from SouthwestRainRain
November 137°F3°C42°F6°C11 mph18 km/h from WestCloudyMostly Cloudy
November 233°F0°C43°F6°C5 mph8 km/h from WestMostly CloudyPartly Cloudy
November 332°F-0°C47°F8°C5 mph8 km/h from SouthwestPartly CloudyDrizzle
November 437°F3°C47°F8°C7 mph12 km/h from WestDrizzlePartly Cloudy

Yes

Low of 33°F1°C, High of 50°F10°C
Wind: 4 mph7 km/h
Precipitation: None

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