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Boise Weather in May
United States · late spring in Northern Hemisphere
Boise in the Treasure Valley has a semi-arid climate with hot, dry summers and cool winters. The city is in a rain shadow east of the Cascade-Sierra Nevada mountain chain, receiving only about 12 inches of precipitation annually. The Boise River and Greenbelt provide riparian cooling, while hot and dry conditions in summer can lead to significant wildfire smoke events from regional fires.
One of the most popular travel months worldwide for good reason.
Current Weather in Boise Right Now
48°F
Broken Clouds
Feels like 45°F · H 49°F / L 46°F