Climate

Updated: February 2, 2026

Montana's weather changes a lot, but it usually isn't as extreme as some people imagine. Because the air is fairly dry, summer heat doesn't feel as sticky as it does in humid places, and cold winter days often feel less "bone-chilling" than the same temperature might in a damp climate. Summers can bring warm, sunny days with cool nights, while winters can be very cold and snowy, especially in the mountains.

The state's climate depends a lot on where you are. Western Montana, with its mountains and valleys, tends to get more rain and snow and has milder winters, while the eastern plains are drier, windier, and can have bigger temperature swings between day and night. Mountain areas like Glacier National Park and the Beartooth Range are cooler year-round and can see snow even in late spring or early fall.

Another big factor is Chinook winds-warm, dry winds that blow down from the Rockies in winter. When Chinooks arrive, temperatures can jump quickly, sometimes going from below freezing to above freezing in just a few hours. This can melt snow fast and make winter days feel almost like spring for a short time.

Because conditions can change quickly, especially near the mountains, people in Montana are used to being prepared. Dressing in layers'a T-shirt, a sweatshirt or fleece, and a jacket you can add or remove-helps you stay comfortable whether the day turns out warmer or colder than expected. That way you can enjoy hiking, skiing, fishing, or just playing outside in almost any season.

• Climate Information
• Temperature Extremes

Updated: February 2, 2026