Yes

you do need a jacket based on the weather in Amherst, NH 03031, USA 1 second ago

Why? Because just cool enough for a jacket, but not warm enough to ditch it and it's super windy outside!
51°F11°C & Cloudy

Wind is 11 mph18 km/h from the Northeast, gusting to 30 mph49 km/h
October 13
4pm52°F11°C11 mph18 km/h NortheastDrizzle
5pm52°F11°C11 mph17 km/h NortheastDrizzle
6pm52°F11°C11 mph17 km/h NortheastDrizzle
7pm53°F12°C11 mph17 km/h NortheastRain
8pm53°F12°C10 mph16 km/h NortheastDrizzle
9pm53°F12°C10 mph16 km/h NortheastDrizzle
10pm52°F11°C10 mph16 km/h NortheastRain
11pm52°F11°C10 mph15 km/h NortheastDrizzle
October 14
12am51°F11°C9 mph14 km/h NortheastDrizzle
1am51°F10°C9 mph14 km/h NortheastDrizzle
2am50°F10°C9 mph14 km/h NortheastDrizzle
3am50°F10°C9 mph14 km/h NortheastDrizzle
DateLowHighWindDayNight
October 1347°F8°C53°F12°C9 mph15 km/h from NortheastRainDrizzle
October 1448°F9°C57°F14°C6 mph10 km/h from NorthDrizzleDrizzle
October 1543°F6°C56°F14°C12 mph19 km/h from NorthwestMostly CloudyMostly Clear
October 1639°F4°C52°F11°C12 mph19 km/h from NorthMostly ClearMostly Clear
October 1740°F4°C58°F15°C7 mph11 km/h from NorthwestMostly ClearPartly Cloudy
October 1842°F6°C65°F18°C3 mph4 km/h from SouthwestPartly CloudyPartly Cloudy
October 1950°F10°C73°F23°C8 mph13 km/h from SouthMostly CloudyRain

Yes

Low of 48°F9°C, High of 57°F14°C
Wind: 6 mph10 km/h
Precipitation: 82% rain

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