Yes

you do need a jacket based on the weather in Boise Airport (BOI), 3201 W Airport Way #1000, Boise, ID 83705, USA 1 second ago

Why? Because it's pretty chilly.
58°F14°C & Cloudy

Wind is 12 mph20 km/h from the NW, gusting to 23 mph37 km/h
April 26
11pm57°F14°C12 mph20 km/h NWMostly Cloudy
April 27
12am55°F13°C12 mph19 km/h NWCloudy
1am53°F12°C12 mph20 km/h NWCloudy
2am51°F11°C11 mph18 km/h NWCloudy
3am50°F10°C11 mph18 km/h NWCloudy
4am49°F9°C12 mph20 km/h NWMostly Cloudy
5am47°F8°C12 mph19 km/h NWMostly Cloudy
6am46°F8°C10 mph17 km/h NWPartly Cloudy
7am44°F7°C11 mph17 km/h NWMostly Clear
8am43°F6°C10 mph17 km/h NWClear
9am43°F6°C11 mph17 km/h NWClear
10am45°F7°C12 mph19 km/h NWClear
DateLowHighWindDayNight
April 2644°F7°C64°F18°C10 mph16 km/h from NWMostly CloudyMostly Cloudy
April 2743°F6°C65°F18°C14 mph22 km/h from NWMostly ClearMostly Cloudy
April 2843°F6°C63°F17°C7 mph12 km/h from NWPartly CloudyPartly Cloudy
April 2942°F5°C57°F14°C14 mph22 km/h from NWMostly CloudyPartly Cloudy
April 3036°F2°C57°F14°C8 mph13 km/h from WPartly CloudyMostly Clear
May 134°F1°C58°F14°C12 mph19 km/h from NWMostly ClearClear
May 237°F3°C63°F17°C9 mph14 km/h from SEPartly CloudyPartly Cloudy

Yes

Low of 43°F6°C, High of 65°F19°C
Wind: 14 mph22 km/h
Precipitation: None

Support This Page