Yes

you do need a jacket based on the weather in Amherst, MA, USA 2 minutes ago

Why? Because the air feels like the cozy middle ground between summer and winter!
54°F12°C & Cloudy

Wind is 6 mph10 km/h from the Northwest, gusting to 11 mph18 km/h
October 25
9pm52°F11°C6 mph9 km/h NorthwestPartly Cloudy
10pm49°F9°C4 mph7 km/h NorthwestMostly Clear
11pm46°F8°C3 mph6 km/h NorthwestCloudy
October 26
12am44°F7°C2 mph4 km/h NorthwestPartly Cloudy
1am42°F6°C2 mph4 km/h SouthwestMostly Clear
2am41°F5°C3 mph5 km/h SoutheastCloudy
3am41°F5°C2 mph4 km/h SoutheastCloudy
4am40°F5°C1 mph2 km/h NorthwestCloudy
5am40°F5°C2 mph4 km/h NorthMostly Cloudy
6am40°F4°C2 mph4 km/h NorthMostly Cloudy
7am39°F4°C3 mph5 km/h NorthMostly Cloudy
8am38°F4°C3 mph5 km/h NorthPartly Cloudy
DateLowHighWindDayNight
October 2534°F1°C56°F13°C3 mph6 km/h from NorthwestMostly ClearMostly Cloudy
October 2636°F2°C54°F12°C5 mph8 km/h from NorthPartly CloudyClear
October 2733°F0°C52°F11°C5 mph8 km/h from NorthPartly CloudyPartly Cloudy
October 2836°F2°C54°F12°C7 mph12 km/h from NortheastPartly CloudyMostly Clear
October 2936°F2°C54°F12°C5 mph8 km/h from NortheastMostly ClearMostly Cloudy
October 3038°F3°C55°F13°C9 mph15 km/h from EastRainRain
October 3146°F8°C58°F14°C9 mph15 km/h from SouthRainMostly Cloudy

Yes

Low of 36°F2°C, High of 54°F12°C
Wind: 5 mph8 km/h
Precipitation: None

Support This Page