Yes

you do need a jacket based on the weather in Howell, NJ, USA 6 minutes ago

Why? Because it's pretty chilly.
53°F12°C & Mostly Clear

Wind is 11 mph18 km/h from the S, gusting to 24 mph38 km/h
April 23
8pm51°F10°C10 mph17 km/h SPartly Cloudy
9pm49°F9°C10 mph16 km/h SMostly Cloudy
10pm47°F9°C10 mph16 km/h SMostly Cloudy
11pm47°F8°C10 mph15 km/h SCloudy
April 24
12am47°F8°C9 mph15 km/h SMostly Cloudy
1am47°F8°C9 mph15 km/h SMostly Cloudy
2am47°F8°C10 mph15 km/h SCloudy
3am48°F9°C10 mph15 km/h SCloudy
4am48°F9°C9 mph14 km/h SWCloudy
5am48°F9°C8 mph13 km/h SWCloudy
6am49°F10°C8 mph13 km/h SWCloudy
7am51°F10°C8 mph12 km/h SWCloudy
DateLowHighWindDayNight
April 2333°F0°C62°F17°C7 mph11 km/h from SClearMostly Cloudy
April 2447°F8°C69°F21°C9 mph15 km/h from WMostly CloudyPartly Cloudy
April 2538°F3°C54°F12°C8 mph13 km/h from EMostly ClearClear
April 2632°F0°C60°F16°C7 mph11 km/h from SEClearMostly Clear
April 2736°F2°C61°F16°C8 mph13 km/h from SMostly CloudyMostly Cloudy
April 2849°F9°C81°F27°C8 mph12 km/h from SWPartly CloudyPartly Cloudy
April 2959°F15°C80°F27°C6 mph9 km/h from SEMostly CloudyPartly Cloudy

Yes

Low of 46°F8°C, High of 69°F21°C
Wind: 9 mph15 km/h
Precipitation: 21% rain

Support This Page