Boise City Travel Guide

Weather in Boise City

Summers are hot and dry with cool nights, while winters are generally cold with snow on the surrounding mountains. There is very little annual precipitation in the city. Summer temperatures average 90°F (32°C), but hotter spells are common in July and August. Winter temperatures are typically 30-50°F (-1°C to 10°C) during the day and below freezing at night.