Boise Climate and Weather
Summers are hot and dry in this semi-arid continental climate, while winters are generally cold with snow falling on the surrounding mountains. There's very little annual precipitation in the city. Summer temperatures average 90ºF (32ºC), but hotter spells are common in July and August. Winter temperatures are typically between 24ºF (-4ºC) and 37ºF (3ºC).